Capp

Calino

Coda

Italian coda, "tail"

Codo

Cola

Old English byname meaning "charcoal", originally given to a person with dark features

Cresso

Gilo

Recorded as a masculine given name in medieval french

Izzo

An Italian name often associated with 'God's gift'.

Oddi

Recorded as a masculine given name in Old Norse

Zito

Italian nickname from zito, "bachelor, unmarried boy"

Zugo

Italian name for Zug, the town and capital of the Swiss canton of Zug.