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| Term | Definition |
|---|---|
| en-, em- (Latin) | To cause to be/ to put into Encounter /embark |
| de- (Latin) | reduce/ away from defeat/ decrease |
| trans- (Latin) | across/ change/ through Transformation, transportation |
| anti- (Greek) | against/ opposite Antifreeze, antibiotic |
| di-, dia- (Greek) | two/ through/ across Dialogue, diagonal |
| ex- (Latin) | Out of/ away from Exhale, extract |
| auto- (Greek) | self Automatic, autograph |
| in-, il-, im-, ir- (Latin) | not Inability, impatient, irregular |
| Inter- (Latin) | between Interstate, internet |
| bio- (Greek) | life Biography., biology |
| mini- (Latin) | small Miniature, minimum |
| micro- (Greek) | Small, miniature Microscope, microchip |
| uni- (Latin) | One, single Unicycle, uniform |
| semi- (Latin) | half semicircle |
| Tele- (Greek) | distant/ far Television, telephone |
| -ity (Latin) | State of/ quality of prosperity/ quality |
| -al, -ial (Latin) | Related to/ characterized by Comical, jovial |
| -an (Latin) | One having a certain skill/ relating to/ belonging to Musician, electrician |
| -ence, -ance (Latin) | act/ condition of persistance, importance |
| -ent, -ant (Latin) | Causing a specific action/ condition Obedient, brilliant |
| -logy, -ology (Greek) | Study of Biology, zoology |
| -ment (Latin) | Act. process Enjoyment, accomplishment |
| -ous, eous, ious (Latin) | Full of/ characterized by Glamorous, fabulous |
| aqua (Latin) | water Aquarium, aquamarine |
| act (Latin) | Set into motion, process of doing Action, react, transact |
| mit (Latin) | To send Transmit, emit |
| anni, annu, enni (Latin) | year Annual, anniversary, millennium |
| arch (Greek) | Chief, ruler Monarchy, matriarch |
| duct, duc (Latin) | lead Induce, conduct |
| geo (Greek) | Earth, ground, soil Geography, geology |
| man (Latin) | hand Manually, manicure |
| nym, onym (Greek) | name/word Synonym, antonym |
| phon (Greek) | voice/ sound Telephone, microphone |
| therm (Greek) | heat Thermometer, thermostat |
| tox (Latin) | poison Toxicology, |
| scope (Greek) | To watch or see Microscope, telescope |
| ante- (Latin) | In front of/ before Antecedent, antebellum |
| ab- (Latin) | from/ away Absent, absorb, abnormal |
| Co-, con-, com- (Latin) | together/ with Coexist, cohesive, community |
| pro- (Latin/Greek) | forward/ before/ in support of Progress, promote, propel |
| Intra- (Latin) | within Intravenous, intranet |
| mega- (Greek) | great/huge Megaphone, megalith, megabyte |
| post- (Latin) | after/following Postpone, postseason |
| -ous, -ious, eous (Latin) | Full of/ characterized by Dangerous, generous, adventurous |
| -ive, itive ative (Latin) | inclined/ trending toward an action Excessive, supportive, active |
| -ic (Latin/Greek) | Relating to/ characterized by Iconic, chaotic, historic |
| -ize (Latin/Greek) | To make/ to cause to become Hospitalize, finalize, apologize |
| -fy, -ify (Latin) | To make Intensify, exemplify, magnify |
| -age (Latin) | Result of an action/ collection Advantage, wreckage, manage |
| chron (Greek) | time Chronology, synchronized, chronic |
| tempo (Latin) | time Temporary, contemporary |
| aer, aero (Greek) | air Aerosol, aerospace, aerobic |
| Cede, ceed (Latin) | To take/ catch/ seize/ hold/ receive Concede, proceed, excede, recede |
| Fract, frag (Latin) | To break Fracture, fragment, fragile |
| gen (Latin) | Race, kind, or species Generation, genetic, degenerate |
| grat (Latin) | thanks/ pleasing Gratitude, gratuity, congratulate |
| liber (Latin) | free Liberation, liberty, liberalism |
| mater, matr, matri (Latin) | mother Maternal, matriarch, matrimony |
| Leg, lect, lig (Latin) | Law/ to choose/ to pick/ to read/ to speak Election, legal, lecture |
| Pater, patr (Latin) | father patriot patriarch, patron |
| Mot, mob (Latin) | To move Mobilize, motivate, automobile |
| opt (Latin) | eye/ to make a choice Optometrist, option, optimist |
| Ped, pod (Latin) | foot Pedicure, podiatrist, pedal |
| ped (Greek) | child Pediatrician, pediatrics |
| urb (Latin) | city Urban, suburban, exurbia |
| pop (Latin) | people Popular, populate, population |
| tract (Latin) | To draw/ pull Traction, tractor, distract |
| Pend (Latin) | To hang/ weigh Suspend, depend, appendage |
| form (Latin) | To shape Transform, deformed, conform |
| hyper- (Greek) | over/ above/ excessive Hyperventilate, hyperactive |
| Hypo-, hyp- (Greek) | below/ less than normal Hypoallergenic, hypoactive |
| omni- (Latin) | all Omnivore, omnipresent |
| homo- (Latin) | same Homophone, homogeneous, |
| Hetero- (Greek) | different/ other Heterogeneous, heterotroph |
| ultra- (Greek) | Beyond in degree/ extreme Ultraviolet, ultrasonic, ultrasound |
| -ary (Latin) | Relating to/ one who/ place where Dictionary, cautionary, sedentary |
| -ium (Greek) | Chemical element/ group Helium, titanium, chromium |
| -tude (Latin) | condition/ state/ quality of Multitude, aptitude, solitude |
| aud (Latin) | To hear/ listen Audio, audiologist, auditory |
| Bene (Latin) | well/ good Beneficial, benefit, benevolent |
| cred (Latin) | To believe Credit, credentials, incredible |
| Archae, arche, archi (Greek) | primitive/ ancient Archaeologist, archive, architect |
| belli (Latin) | war Antebellum, belligerent, rebellious |
| Claim, clam (Latin) | To declare/ call out/ cry out Acclaim, disclaim, declamation |
| Crat, cracy (Greek) | rule/ strength/ power Democracy, bureaucrat, autocracy |
| Hemo, hema (Greek) | blood Hematoma, hemoglobin, hemorrhage |
| luna (Latin) | moon Lunar, lunatic, |
| mar (Latin) | sea Maritime, marine |
| mort (Latin) | death Immortal, morgue, mortician |
| path (Greek) | feeling/ suffering/ disease Pathology, empathy, sympathetic |
| pel (Latin) | To drive/ push Propel, compel, expel |
| Struc, struct (Latin) | To build Structure, construction, destruct |
| Vis, vid (Latin) | To see Visualize, video, vision |
| Voc, voke (Latin) | To call Evoke, advocate, revoke |
| cogn (Latin) | To know Recognize, cognition, cognizant |
| Loc, loqu (Latin) | To speak. talk/ say Ventriloquist, eloquent |