köken: Etymology tree Proto-Indo-European *h₂éd Proto-Italic *ad Latin ad Old French a Proto-Indo-European *dʰeh₁k- Proto-Indo-European *-yéti Proto-Indo-European *dʰh₁kyéti Proto-Italic *θakjō Proto-Italic *fakjō Latin facio Old French faire Old French afaire French affairebor. German Affärebor. Polish afera Proto-Indo-European *-id- Proto-Indo-European *-yéti Proto-Indo-European *-idyéti…