Ab-solve, rhyddhau; maddeu
Ab-sorb, llyngcu, sugno, difa
Ab-stain, ymattal; ymgadw
Ab-stract, crynodeb: crynhoi
Ab-surd, afresymol; gwrthun
A-buse, camdriniaeth: camarfer
A-byss, eigion, pwll diwaelod
Ac-cede, cytuno, cydsynio
Ac-cent, acen: acenu
Ac-cept, derbyn