Study roots that name culture, sacred belief, community, trust, and endurance.
8 targets with matricesBuild, compare, and explain11 mastery checks
THE GIST
The idea behind these word parts
Roots connect words through shared ideas such as care, city, trust, and lasting. Dur links durable and durability to the ability to last.
Go deeper · how the parts work in context
Durable describes something that lasts through use. Durability names that quality. The ending changes the word’s job, and able becomes abil before -ity: durable → durability.
dur + able + ity → durability
The durability of the baskets allowed families to use them for years.
Durability is the ability to last through use.
Word parts suggest a meaning; the sentence helps confirm it. If the clues are not enough, check a dictionary.
EXPLORE THE WORD PARTS
Meaning, connections, and practice
Choose a word part. Read its gist, explore its map and matrix, then answer its three checks. Open the extra explanation whenever you need it.
How to use a matrix
Leading part + base + ending → word. Choose cells from left to right. Only paths that make one of the listed words are enabled. ∅ means no part is added.
The center can be a root or a whole word. Some cells contain combining forms or grouped endings. Related bases can change spelling, as in scribe/script or mit/miss; follow the spelling notes.
Keep a word for comparison, then select another word to see which parts and meanings changed.
01
cult
care for
The gist: cultivate means care for plants as they grow. The clue cult connects it to care for.
Why it works · examples & details
The shared clue is the core meaning: care for. Compare cultivate (care for plants as they grow) with agriculture (care for fields and crops). The complete word’s definition is more specific than the word-part clue.
cult + ivate → cultivate To care for growing plants or develop a skill. It works as a verb in this example.
Meaning & spelling: This is connected to the “grow” sense in Roots 6B.
The map and matrix show established words. Matching letters alone do not prove a meaningful relationship.
Explore cult · map, matrix & checks
cultivatecare for plants as they grow
agriculturecare for fields and crops
Word-family cluster map: cult
Follow one root into related words. Read each connection and explain how the shared meaning develops. Select a word to load its path in the matrix below.
Read the family first.
cultcare for
cult + ivateverb
To care for growing plants or develop a skill.
cult + ivate + ionnoun
The process of growing or developing something.
Drop the final silent e before the vowel suffix: cultivate + ion → cultivation.
cult + urenoun
A group’s shared practices, meanings, and ways of life.
Explain the connection: “These words share ___. In ___ it helps mean ___; in ___ it helps mean ___.”
Build with cult 3 word paths
cult: care for. Choose parts from left to right, or choose a word below. Dimmed choices do not continue a word in this matrix.
Prefix / leading part
Root or whole base
Suffix / ending
cult + ivate → cultivate
To care for growing plants or develop a skill.
verb
What changed?
Starting word
Selected word
Compare two paths
cultivate: To care for growing plants or develop a skill. culture: A group’s shared practices, meanings, and ways of life.
Say which parts stay and which change. Explain how the meaning or word job changes.
Read every word sum and meaning
Word sum
Word
Meaning
cult + ivate
cultivate
To care for growing plants or develop a skill.
cult + ivate + ion
cultivation
The process of growing or developing something.
cult + ure
culture
A group’s shared practices, meanings, and ways of life.
Check your understanding
Use the map and matrix as needed. A wrong answer gives you a clue; try again or open the explanation.
0 of 3 answered correctly
02
sanct
holy
The gist: sanctuary means a holy or protected place. The clue sanct connects it to holy.
Why it works · examples & details
The shared clue is the core meaning: holy. Compare sanctuary (a holy or protected place) with sanctify (make holy). The complete word’s definition is more specific than the word-part clue.
sanct + ify → sanctify To make holy or sacred. It works as a verb in this example.
The map and matrix show established words. Matching letters alone do not prove a meaningful relationship.
Explore sanct · map, matrix & checks
sanctuarya holy or protected place
sanctifymake holy
Word-family cluster map: sanct
Follow one root into related words. Read each connection and explain how the shared meaning develops. Select a word to load its path in the matrix below.
Read the family first.
sanctholy
sanct + ifyverb
To make holy or sacred.
sanct + ify + ationnoun
The process of making something holy.
Before -ation, -ify takes the form -ific-: sanctify + ation → sanctification.
sanct + uarynoun
A sacred place or place of protection.
Explain the connection: “These words share ___. In ___ it helps mean ___; in ___ it helps mean ___.”
Build with sanct 3 word paths
sanct: holy. Choose parts from left to right, or choose a word below. Dimmed choices do not continue a word in this matrix.
Prefix / leading part
Root or whole base
Suffix / ending
sanct + ify → sanctify
To make holy or sacred.
verb
What changed?
Starting word
Selected word
Compare two paths
sanctify: To make holy or sacred. sanctuary: A sacred place or place of protection.
Say which parts stay and which change. Explain how the meaning or word job changes.
Read every word sum and meaning
Word sum
Word
Meaning
sanct + ify
sanctify
To make holy or sacred.
sanct + ify + ation
sanctification
The process of making something holy.
sanct + uary
sanctuary
A sacred place or place of protection.
Check your understanding
Use the map and matrix as needed. A wrong answer gives you a clue; try again or open the explanation.
0 of 3 answered correctly
03
theo
god
The gist: theology means the study of God or religion. The clue theo connects it to god.
Why it works · examples & details
The shared clue is the core meaning: god. Compare theology (the study of God or religion) with theocracy (rule in the name of God or religion). The complete word’s definition is more specific than the word-part clue.
theo + logy → theology The study of God or religion. It works as a noun in this example.
The map and matrix show established words. Matching letters alone do not prove a meaningful relationship.
Explore theo · map, matrix & checks
theologythe study of God or religion
theocracyrule in the name of God or religion
Word-family cluster map: theo
Follow one root into related words. Read each connection and explain how the shared meaning develops. Select a word to load its path in the matrix below.
Read the family first.
theogod
theo + logynoun
The study of God or religion.
theo + log + icaladjective
Related to the study of God or religion.
theo + cracynoun
Government in the name of God or religion.
Explain the connection: “These words share ___. In ___ it helps mean ___; in ___ it helps mean ___.”
Build with theo 3 word paths
theo: god. Choose parts from left to right, or choose a word below. Dimmed choices do not continue a word in this matrix.
Prefix / leading part
Root or whole base
Suffix / ending
theo + logy → theology
The study of God or religion.
noun
What changed?
Starting word
Selected word
Compare two paths
theology: The study of God or religion. theocracy: Government in the name of God or religion.
Say which parts stay and which change. Explain how the meaning or word job changes.
Read every word sum and meaning
Word sum
Word
Meaning
theo + logy
theology
The study of God or religion.
theo + log + ical
theological
Related to the study of God or religion.
theo + cracy
theocracy
Government in the name of God or religion.
Check your understanding
Use the map and matrix as needed. A wrong answer gives you a clue; try again or open the explanation.
0 of 3 answered correctly
04
urb
city
The gist: urban means related to a city. The clue urb connects it to city.
Why it works · examples & details
The shared clue is the core meaning: city. Compare urban (related to a city) with suburb (an area outside a city). The complete word’s definition is more specific than the word-part clue.
urb + an → urban Related to a city. It works as a adjective in this example.
The map and matrix show established words. Matching letters alone do not prove a meaningful relationship.
Explore urb · map, matrix & checks
urbanrelated to a city
suburban area outside a city
Word-family cluster map: urb
Follow one root into related words. Read each connection and explain how the shared meaning develops. Select a word to load its path in the matrix below.
Read the family first.
urbcity
urb + anadjective
Related to a city.
sub + urb + anadjective
Related to an area outside a city’s center.
urb + an + izeverb
To make an area more like a city.
Explain the connection: “These words share ___. In ___ it helps mean ___; in ___ it helps mean ___.”
Build with urb 3 word paths
urb: city. Choose parts from left to right, or choose a word below. Dimmed choices do not continue a word in this matrix.
Prefix / leading part
Root or whole base
Suffix / ending
urb + an → urban
Related to a city.
adjective
What changed?
Starting word
Selected word
Compare two paths
urban: Related to a city. urbanize: To make an area more like a city.
Say which parts stay and which change. Explain how the meaning or word job changes.
Read every word sum and meaning
Word sum
Word
Meaning
urb + an
urban
Related to a city.
sub + urb + an
suburban
Related to an area outside a city’s center.
urb + an + ize
urbanize
To make an area more like a city.
Check your understanding
Use the map and matrix as needed. A wrong answer gives you a clue; try again or open the explanation.
0 of 3 answered correctly
05
fid
faith or trust
The gist: fidelity means faithfulness. The clue fid connects it to faith or trust.
Why it works · examples & details
The shared clue is the core meaning: faith or trust. Compare fidelity (faithfulness) with confide (trust someone with information). The complete word’s definition is more specific than the word-part clue.
fid + elity → fidelity Faithfulness to a person, promise, or idea. It works as a noun in this example.
The map and matrix show established words. Matching letters alone do not prove a meaningful relationship.
Explore fid · map, matrix & checks
fidelityfaithfulness
confidetrust someone with information
Word-family cluster map: fid
Follow one root into related words. Read each connection and explain how the shared meaning develops. Select a word to load its path in the matrix below.
Read the family first.
fidfaith or trust
fid + elitynoun
Faithfulness to a person, promise, or idea.
con + fideverb
To trust someone with private information.
con + fid + encenoun
Trust in a person or ability.
Explain the connection: “These words share ___. In ___ it helps mean ___; in ___ it helps mean ___.”
Build with fid 3 word paths
fid: faith or trust. Choose parts from left to right, or choose a word below. Dimmed choices do not continue a word in this matrix.
Prefix / leading part
Root or whole base
Suffix / ending
fid + elity → fidelity
Faithfulness to a person, promise, or idea.
noun
What changed?
Starting word
Selected word
Compare two paths
fidelity: Faithfulness to a person, promise, or idea. confidence: Trust in a person or ability.
Say which parts stay and which change. Explain how the meaning or word job changes.
Read every word sum and meaning
Word sum
Word
Meaning
fid + elity
fidelity
Faithfulness to a person, promise, or idea.
con + fide
confide
To trust someone with private information.
con + fid + ence
confidence
Trust in a person or ability.
Check your understanding
Use the map and matrix as needed. A wrong answer gives you a clue; try again or open the explanation.
0 of 3 answered correctly
06
ego
self or sense of self
The gist: ego means a person’s sense of self. The clue ego connects it to self or sense of self.
Why it works · examples & details
The shared clue is the core meaning: self or sense of self. Compare ego (a person’s sense of self) with egocentric (centered on oneself). The complete word’s definition is more specific than the word-part clue.
ego → ego A person’s sense of self. It works as a noun in this example.
Meaning & spelling: The workbook label was clarified from “mind” to “self or sense of self.”
The map and matrix show established words. Matching letters alone do not prove a meaningful relationship.
Explore ego · map, matrix & checks
egoa person’s sense of self
egocentriccentered on oneself
Word-family cluster map: ego
Follow one root into related words. Read each connection and explain how the shared meaning develops. Select a word to load its path in the matrix below.
Read the family first.
egoself or sense of self
egonoun
A person’s sense of self.
ego + ismnoun
Concern with one’s own interests.
ego + istnoun
A person mainly concerned with their own interests.
Explain the connection: “These words share ___. In ___ it helps mean ___; in ___ it helps mean ___.”
Build with ego 3 word paths
ego: self or sense of self. Choose parts from left to right, or choose a word below. Dimmed choices do not continue a word in this matrix.
Prefix / leading part
Root or whole base
Suffix / ending
ego → ego
A person’s sense of self.
noun
What changed?
Starting word
Selected word
Compare two paths
ego: A person’s sense of self. egoist: A person mainly concerned with their own interests.
Say which parts stay and which change. Explain how the meaning or word job changes.
Read every word sum and meaning
Word sum
Word
Meaning
ego
ego
A person’s sense of self.
ego + ism
egoism
Concern with one’s own interests.
ego + ist
egoist
A person mainly concerned with their own interests.
Check your understanding
Use the map and matrix as needed. A wrong answer gives you a clue; try again or open the explanation.
0 of 3 answered correctly
07
carn
flesh
The gist: carnivore means an animal that eats flesh. The clue carn connects it to flesh.
Why it works · examples & details
The shared clue is the core meaning: flesh. Compare carnivore (an animal that eats flesh) with carnivorous (flesh-eating). The complete word’s definition is more specific than the word-part clue.
carn + ivore → carnivore An animal that eats meat. It works as a noun in this example.
The map and matrix show established words. Matching letters alone do not prove a meaningful relationship.
Explore carn · map, matrix & checks
carnivorean animal that eats flesh
carnivorousflesh-eating
Word-family cluster map: carn
Follow one root into related words. Read each connection and explain how the shared meaning develops. Select a word to load its path in the matrix below.
Read the family first.
carnflesh
carn + ivorenoun
An animal that eats meat.
carn + ivor + ousadjective
Meat-eating.
in + carn + ateadjective
Given a bodily form.
Explain the connection: “These words share ___. In ___ it helps mean ___; in ___ it helps mean ___.”
Build with carn 3 word paths
carn: flesh. Choose parts from left to right, or choose a word below. Dimmed choices do not continue a word in this matrix.
Prefix / leading part
Root or whole base
Suffix / ending
carn + ivore → carnivore
An animal that eats meat.
noun
What changed?
Starting word
Selected word
Compare two paths
carnivore: An animal that eats meat. incarnate: Given a bodily form.
Say which parts stay and which change. Explain how the meaning or word job changes.
Read every word sum and meaning
Word sum
Word
Meaning
carn + ivore
carnivore
An animal that eats meat.
carn + ivor + ous
carnivorous
Meat-eating.
in + carn + ate
incarnate
Given a bodily form.
Check your understanding
Use the map and matrix as needed. A wrong answer gives you a clue; try again or open the explanation.
0 of 3 answered correctly
08
dur
hard or lasting
The gist: durable means hard-wearing and long-lasting. The clue dur connects it to hard or lasting.
Why it works · examples & details
The shared clue is the core meaning: hard or lasting. Compare durable (hard-wearing and long-lasting) with endure (last through hardship). The complete word’s definition is more specific than the word-part clue.
dur + able → durable Able to last through use or hardship. It works as a adjective in this example.
The map and matrix show established words. Matching letters alone do not prove a meaningful relationship.
Explore dur · map, matrix & checks
durablehard-wearing and long-lasting
endurelast through hardship
Word-family cluster map: dur
Follow one root into related words. Read each connection and explain how the shared meaning develops. Select a word to load its path in the matrix below.
Read the family first.
durhard or lasting
dur + ableadjective
Able to last through use or hardship.
dur + able + itynoun
The ability to last.
Before -ity, -able takes the form -abil-: durable + ity → durability.
dur + ationnoun
The length of time something lasts.
Explain the connection: “These words share ___. In ___ it helps mean ___; in ___ it helps mean ___.”
Build with dur 3 word paths
dur: hard or lasting. Choose parts from left to right, or choose a word below. Dimmed choices do not continue a word in this matrix.
Prefix / leading part
Root or whole base
Suffix / ending
dur + able → durable
Able to last through use or hardship.
adjective
What changed?
Starting word
Selected word
Compare two paths
durable: Able to last through use or hardship. duration: The length of time something lasts.
Say which parts stay and which change. Explain how the meaning or word job changes.
Read every word sum and meaning
Word sum
Word
Meaning
dur + able
durable
Able to last through use or hardship.
dur + able + ity
durability
The ability to last.
dur + ation
duration
The length of time something lasts.
Check your understanding
Use the map and matrix as needed. A wrong answer gives you a clue; try again or open the explanation.
0 of 3 answered correctly
DECODE · FOLLOW THE CLUES
Use the clue without overtrusting it
A word part gives you a strong clue—not always a complete definition.
Spot the part.Underline the exact letters you recognize.
Recall the clue.Say the meaning you learned for that part.
Test the whole word.Combine the clue with the other parts and the sentence.
Decode agriculture
Spot agriculture. The root cult carries the clue care for. Here, it helps you understand: care for fields and crops.
Decode sanctify
Spot sanctify. The root sanct carries the clue holy. Here, it helps you understand: make holy.
Decode theocracy
Spot theocracy. The root theo carries the clue god. Here, it helps you understand: rule in the name of God or religion.
Compare the meanings, then test which form fits the sentence.
urban
related to a city
suburban
related to an area outside a city’s center
Explain the difference
Urb supplies city in both. Sub- helps locate the second word, but suburban has a specific meaning; it does not mean underground.
A common mistake—and how to avoid it
A literal word-part translation may be incomplete. Suburban does not simply mean under a city. Use the established definition and the sentence together.
QUICK QUIZ · RECALL & APPLY
Recall the parts. Apply the pattern.
Check every target, then complete three applied questions. If you miss one, revisit its matrix and try again. Finish with the new-word challenge below.
CHECK IN CONTEXT
Make sense of a new word
Use both the word parts and the sentence. Open a hint if you need a starting point.
As farms became neighborhoods and the town grew into a city, urbanization changed the region.
Expand your thinking · explain it or use itCheck your sentence
Does the word’s established meaning fit your idea?
Does its form fit the grammar of your sentence?
Can you identify a meaningful part and explain its contribution?
These optional notes are not saved, graded, or submitted.
COME BACK · RETRIEVE IT AGAIN
Remember after a break
Return in two days, then about a week later. Before opening the notes, recall a meaning, rebuild two words, and use one in a new sentence.
Start with cult. What does it mean? Which two words connect to it?
Check after you recall
cult: care for. For example: cultivate and agriculture. Explain how each connects to the meaning.
Review dates are saved only on this device and shown on the course hub. No notifications are sent. Written responses are not saved.
Lesson-quiz progress and review dates are saved only on this device, not submitted to your teacher. Word-part and context practice checks reset when you reload the page.