Where does “wyn” come from?

wyn (Middle English) comes from Old English wīn, from Proto-West Germanic wīn, from Proto-Germanic wīną, from Latin vīnum, from Proto-Italic wīnom, from Proto-Indo-European wóyh₁nom, from Proto-Indo-European weh₁y- — to twist, wind, weave, plait; to wrap, enclose,...

wyn (Middle English): wine; Alternative form of wynne; Alternative form...