Catalan castanya

← Spanish castaña (cognate)

← French châtaigne (cognate)

← Ancient Greek καστάνεια (derived)

← Latin castanea (inherited)

← Occitan castanha (cognate)

← Old Occitan (inherited)

→ Catalan castany (mention)

→ Catalan castanyer (suffix)

→ Catalan castanyada (suffix)