"to proceed on, to direct (one's course or way)," Old English wendan "to turn, direct, go; convert, translate," from Proto-Germanic *wandeja- (source also of Old Saxon wendian, Old Norse venda, Swedish vända, Old Frisian wenda, Dutch wenden, German wenden, Gothic wandjan "to turn"), causative of PIE *wendh- "to turn, wind, weave" (see wind (v.1)). Surviving only in wend one's way, and in hijacked past tense form went. It is related to wander.
member of a Slavic people of eastern Germany, 1610s (implied in Wendish), from German Wende, from Old High German Winida, related to Old English Winedas "Wends," of uncertain origin. Perhaps ultimately from Celtic *vindo- "white," or from PIE *wen-eto- "beloved," from root *wen- (1) "to desire, strive for." Related: Wendish.