wringer n.

Old English wringan "press, strain, wring, twist" (class III strong verb; past tense wrang, past participle wrungen), from Proto-Germanic *wreng- (source also of Old English wringen "to wring, press out," Old Frisian wringa, Middle Dutch wringhen, Dutch wringen "to wring," Old High German ringan "to move to and fro, to twist," German ringen "to wrestle"), from *wrengh-, nasalized variant of *wergh- "to turn," from PIE root *wer- (2) "to turn, bend." To wring (one's) hands "press the hands or fingers tightly together (as though wringing)" as an indication of distress or pain is attested from c. 1200.