köken: Borrowed from Late Latin uniōnem, from Latin uniōnem (“unite”).
aile: en unión de, la unión hace la fuerza, reunión, unión aduanera, Unión Africana, unión americana, unión civil, unión de hecho, Unión Europea, unión libre
köken: Borrowed from Late Latin unio, unionem, from Latin unio (“unite”). Compare Portuguese união.
Etimoloji
Originally jocular, derived from Einsamkeit (“solitude, loneliness”) by replacing ein (“one”) with zwei (“two”). Compare Dutch tweezaamheid (possibly after the German).