From Middle Dutchzoene, soen, soene, swoene(“reconciliation; atonement; kiss”), from Old Dutch*sōna, *swōna(“reconciliation; peace; agreement”), from Proto-Germanic*sōnō, *swōnō(“appeasement; reconciliation; atonement; sacrifice”), from Proto-Indo-European*swā-n-(“healthy; whole; active; vigorous”). Cognate with German Sühne(“atonement”). Related to Dutch gezond(“healthy”).