gaiter (n.)

"leather cover for the ankle," 1775, from French guêtre "belonging to peasant attire," of uncertain origin; probably ultimately from Frankish *wrist "instep," or a similar Germanic source, from Proto-Germanic *wirstiz (source also of German Rist "instep," English wrist), from *wreik- "to turn," from PIE root *wer- (2) "to turn, bend." Related: Gaiters; gaitered (1760).