From Middle English windy, from Old English windiġ ("windy"), from Proto-Germanic *windigaz ("windy"), equivalent to wind + -y. Cognate with Saterland Frisian wiendich ("windy"), West Frisian winich ("windy"), Dutch winderig ("windy"), German Low German windig ("windy"), German windig ("windy"), Swedish vindig ("windy"), Icelandic vindugur ("windy").