cavilar - to think
cebar - to fatten (animal)
cecear - to pronounce the Spanish s as z like people in Spain
ceder - to cede, to transfer, to diminish
cedular - to issue identity cards to
cegar - to blind
cejar - to give up, to cease
cementar - to cement
censar - to take a census of
centellear - to twinkle, to sparkle