Yours, Etc.: Origins and Uses of 8 Sign-Offs
late 14c., from Low German wrangeln "to dispute, to wrestle," related to Middle Low German wringen, from Proto-Germanic *wrang-, from PIE *wrengh-, nasalized variant of *wergh- "to turn" (see wring). Related: Wrangled; wrangling. The noun is recorded from 1540s.