Dictionary of Medieval Names
from European Sources

Winsy m. Old English wine 'friend' + Old English sige 'victory'.

England
Latin
967 Winsige (nom) CDAS DXXXIII
Cite as: S.L. Uckelman. "Winsy". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Winsy.