French foin

← Old French foin (inherited)

← Old French fein (mention)

← Proto-Indo-European (derived)

← Proto-Indo-European *dʰeh₁(y)- (mention)

← Latin faenum (inherited)

→ English sainfoin (mention)

→ Catalan fenc (cognate)

→ Dalmatian fin (cognate)

→ Esperanto fojno (mention)

→ French sainfoin (mention)

→ French arrière-foin (prefix)