From Middle English wrynklen, wrinklen (“to wrinkle”), from Old English *wrinclian (attested in past participle ġewrinclod (“wrinkled, crooked, winding”)). Cognate with Middle Dutch wronckelen, wrinckelen (“to wind, wrap, meander”), modern dialectal Dutch wrinkelen (“to wrinkle”). Compare also Middle English runklen (“to wrinkle, become wrinkled”).