Spanish quejigo

← Aragonese caixico (cognate)

← Asturian caxigu (derived)

← Proto-Celtic *cassicu (derived)

← Proto-Celtic *cass- (mention)

← Spanish cajigo (mention)

← French chêne (cognate)

→ Aragonese caixico (cognate)

→ Spanish cajigo (mention)

→ French chêne (mention)

→ Occitan casse (cognate)