| A | B |
| cresc, cret, crease, cru | rise, grow, cresent |
| crit | separate, choose, hypocrisy |
| cur, curs | run, incur |
| cura | care, manicure |
| cus, cuse | cause, motive, excuse |
| cycl, cyclo | wheel, circular, bicycle |
| deca | ten, decade |
| dem | people, demography |
| dent | tooth, dentifrice |
| derm | skin, dermatology |
| dic, dict | say, speak, dictate |
| doc | teach, document |
| domin | master, dominion |
| don | give, donate |
| dorm | sleep, dormant |
| dox | opinion, praise, heterodox |
| duc, duct | lead, conduct |
| dura | hard, lasting, durable |
| dynam | power, dynamic |
| end, endo | within, endothelium |
| equi | equal, equality |
| erg | work, energy |
| fac, fact, fic, fect | do, make, manufacture |
| fal, fals | deceive, falsify |
| fer | bear, carry, fertile |
| fic, fect | do, make, faculty |
| fid, fide, feder | faith, turst, Fido |
| fila, fili | thread, filament |
| fin | end, ended, finished, finish |
| fix | fix, prefix |
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