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Word Parts
Common Roots, Prefixes and Suffixes
| Term | Definition |
|---|---|
| act (root) Examples: activate, enact, activity | to do, drive |
| alt (root) Example: exalt, altitude | high |
| aqua (root) Ex: aquarium, aquamarine | water |
| astro (root) Ex: astrology | star |
| aud (root) Ex: audio, auditorium | to hear |
| biblio (root) Ex: Bible, bibliography | book |
| bio (root) Ex: biology, biography | life |
| cede (root) Ex: recede, precede | to go |
| cent (root) Ex: centarian, centimeter | one hundred |
| chrono (root) Ex: chronological, chronic | time |
| cred (root) Ex: credit, credentials | to believe or trust |
| circ (root) Ex: circular, circumstance, circulation | around |
| dem (root) Ex: democracy, epidemic | people |
| dent | tooth |
| dic | to say; to speak |
| dur | hard, lasting |
| fin | end, limit |
| gen | race, family, kind |
| geo | earth |
| graph | to write, draw or record |
| gram | to write, draw or record |
| hab | to have, to hold; to dwell |
| hydro | water |
| hypo | under, below |
| jur | law, right, judgment |
| jus | law, right, judgment |
| judic | law, right, judgment |
| leg | law |
| loc | place |
| logo | idea, word, reason, speech |
| meter | measure |
| morph | form |
| mono | one |
| mob | to move |
| noc | night |
| peri | around |
| ped | foot |
| petr | rock |
| phon | sound |
| photo | light |
| port | carry |
| sci | to know |
| scope | to see |
| scrib | to write |
| spec | to see, look at, behold |
| temp | time |
| therm | heat |
| tract | to pull, draw |
| volve | roll |
| ab- (prefix) Ex: absent, abstain | from; away from |
| ad- (prefix) Ex: advantage, adjective | to; toward; addition to |
| aero- | air |
| ante- | before |
| anti- | against; opposite; reverse |
| ap- | to; nearness to |
| auto- | self |
| bene- | good |
| bi- | two |
| circum- | around |
| co- | together |
| com- | together |
| contra- | against |
| de- | opposite of; away from; undo |
| dis- | opposite |
| ex- | out; beyond; away from; former |
| extra- | outside; beyond; besides |
| fore- | before |
| hyper- | more than normal; too much |
| il- | not |
| im- | into |
| in- | not |
| inter- | among; between |
| intra- | within |
| mal- | wrong; bad |
| mis- | wrong; bad; no; not |
| non- | not; opposite of |
| ob- | against |
| per- | through |
| post- | after |
| pre- | before |
| pro- | before; for; in support of |
| re- | back; again |
| retro- | backward |
| semi- | half; partly |
| sub- | under; beneath |
| super- | over |
| sur- | over; above |
| trans- | across; over |
| ultra- | extremely |
| un- | not |
| -able / -ible (suffixes) Ex: knowable, credible | able to be : MAKES ADJECTIVES |
| -ance (suffix) Ex: appearance, brilliance) | An act, process or state: MAKES NOUNS |
| -ant / -ent Ex: deodorant, student, consultant | one who / thing that |
| -ary Ex: dictionary, missionary, cautionary | of; like; relating to |
| -ate Ex: hydrate, fortunate, primate | characteristic of; to become |
| -dom Ex: kingdom, freedom, wisdom | state or quality of: MAKES NOUNS |
| -ence / -ance Ex: brilliance, convenience, exuberance | act or state of being: MAKES NOUNS |
| -er / -or Ex: actor, photographer, reader | one who |
| -ful Ex: restful, beautiful | full of: MAKES ADJECTIVES |
| -ic Ex: comedic, acidic | relating to; characteristic of: MAKES ADJECTIVES |
| -ify Ex: purify, intensify, horrify | to make; to cause to be: MAKES VERBS |
| -ion | act, condition, or result of |
| -ish | of or belong to; characterized by |
| -ism | act, practice or result of |
| -ity | condition or state of being |
| -ive | of; relating to; belonging to |
| -ize | make; cause to be; subject to |
| -less | without |
| -logy | study or theory of |
| -ly | like; characteristic of; resembling |
| -ment | state or quality of being |
| -ment | product or thing |
| -ness | state or quality of being |
| -ous | having; full of; characterized by |
| -ship | state or quality of being |
| -some | like; tending to be |
| -y | characterized by |