Clarkus

Barcley

Caradog

From the Old Welsh name Caratauc, a Welsh form of Caratācos

Cassian

From the roman cognomen cassianus, derived from the family name cassius

Cedrick

A given name, also spelled Cédrick

Ceelo

Chinese-derived name for the dice game four-five-six

Cinders

English (Canadian) given name, recorded as feminine

Clark

A surname of English origin, meaning 'clerk' or 'scholar'

Colten

A variant of the name Colton, which means 'coal town'.

Cosar

Of unknown origin; attested as Arabic خَزَر (ḵazar) and Medieval Greek Χάζαροι (Kházaroi)

Crosby

From a surname derived from an English town name meaning "cross town" in Old Norse