Quiz: Remember the definition of mal de mer?
"to proceed on," Old English wendan "to turn, go," from Proto-Germanic *wandijanan (cf. Old Saxon wendian, Old Norse venda, Old Frisian wenda, Dutch wenden, German wenden, Gothic wandjan "to turn"), causative of Old English windan "to turn, twist" (see wind (v.)), from root *wand-, *wend- "turn." Surviving only in to wend one's way, and in hijacked past tense form went.
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," ultimately from Celt. *vindo- "white."