Wrinkle
late Middle English: origin obscure, possibly a back-formation from the Old English past participle gewrinclod ‘sinuous’ (of which no infinitive is recorded).
wiktionary
Probably from stem of Old English gewrinclod.
wrinkle (plural wrinkles)
etymonline
wrinkle (v.)
early 15c. (transitive), probably from stem of Old English gewrinclod "wrinkled, crooked, winding," past participle of gewrinclian "to wind, crease," from perfective prefix ge- + -wrinclian "to wind," from Proto-Germanic *wrankjan, from a nasalized variant of *werg- "to turn," from PIE root *wer- (2) "to turn, bend." Intransitive sense from 1610s. Related: Wrinkled; wrinkling.
wrinkle (n.)
"fold or crease in the extenal body," late 14c.; in cloth or clothing from early 15c., probably from wrinkle (v.). Meaning "defect, problem" first recorded 1640s; that of "idea, device, notion" (especially a new one) is from 1817.
