Case-ment, rhwyll; colofngap
Ca-shier, ceidwad arian; talwr: diswyddo
Cast-ing, tafliad, bwriad
Cas-tle, castell
Cas-trate, dysbaddu, cyweirio
Catch-ing, heintus, adwythig
Cat-tle, gwartheg, da byw
Cav-il, trawsddadl: trawsddadleu
Cau-tion, pryder: rhybuddio
Cau-tious, gochelgar, gofalus