köken: From Middle High German süezi, from Old High German suozi (akin to Old Saxon swōti), from Proto-West Germanic *swōtī, from Proto-Germanic *swōtuz, from Proto-Indo-European *swéh₂dus. Compare Bavarian siaß, Low German sööt, German Low German soit- (Paderbornisch), Hunsrik sies, Dutch zoet, English sweet, Danish sød.
aile: Süße, süßen, Süßer, Süßes oder Saures, Süßigkeit, Süßkram, süßlich
köken: From Old Norse sœtr, from Proto-Germanic *swōtuz, from Proto-Indo-European *sweh₂dus. Compare Icelandic sætur (“sweet”) and its neuter form sætt.