copîau proflennol
copi caled
copi carbon
copideipio
copi meddal
copio
copïo
côpio
copi proflennol
copïwr
copïwr anghyfreithlon
copi xerox
copog
copor
copr
Copteg
copteg
copyn
copyn-granc
cor
côr
coraches
Coran
corau
corawl
corbenfras
corbwll
corbwmpen
Corc
corcio
corcyn
cord
cordd
corddi
cordeddiad
cordeddiadau
cordeddu
Cordelia
cordiau
cordion
Cordoba
Córdoba
Córdoba Nicaragua (1988–1991)
córdoba Nicaragua (1988–1991)
Cordoba Nicaragwa
cordyn
Corea
Coreaidd
cored
Coreeg
Cymraeg