acri-, acer-

acrid, acute, acid

act-

action, react, enact

ami-, amic-

amicable, amiable

aud-

audible, audience, auditorium

bas-

basement, basic, baste

ben-, bene-, bon-

benefit, benefactor, bonus

bio-

antibiotic, biology, biography

cap-, capt-

captivate, captive, captain

cede-, ceed-, cess-

exceed, precede, recess

chrom-

chromosome, polychromatic, chrome

chron-

chronological, syncronize, chronicle

cred-

credit, discredit, incredible

dict-, dic-

dictionary, dictate, predict

duc-, duct-

conduct, induce, duct

dyna-

dynasty, dynamite, dynamo

fac-, fact-

artifact, facsimile, facility, factory

fid-

confidential, fidelity, diffident

flect-, flex-

genuflect, reflect, reflex

flu-

fluent, superfluous, affluent, fluid

frail, fract-, frag-

fractals, fraction, fragile