Cap-ti-vate, caethgludedig: caethiwo; darostwng
Car-a-van, teithlu, myntai; cludfen
Car-di-nal, cyniadur, prifor; prif, penaf
Car-pen-ter, saer, pensaer coedsaer
Car-ti-lage, madruddyn, madrudd
Cas-u-al, damweiniol, dygwyddol
Cat-a-comb, beddogof, claddogof
Cat-a-logue, cofres, mynegfa: cofrestru
Cat-a-ract, rhaiadr, dyfrgwymp
Cat-e-chise, egwyddori, holwyddori