Occitan casse

← Aragonese caixico (cognate)

← Gaulish cassanos (derived)

← Spanish quejigo (cognate)

← French chêne (cognate)

← Old French chesne (cognate)

← Old French chasne (mention)

← Franco-Provençal châno (cognate)

← Latin casnus (mention)

← Old Occitan (inherited)

→ French chêne (cognate)

→ Old French chesne (cognate)