1982, abbreviated from wussy.
Mike Damone: "You are a wuss: part wimp, and part pussy"
["Fast Times at Ridgemont High" script, 1982]
"head and neck covering for women," formerly worn out of doors and especially by nuns, Old English wimpel, from Proto-Germanic *wimpilaz (source also of Old Saxon wimpal, Old Frisian wimpel, Middle Dutch, Dutch wimpel, Old High German wimpal, German wimpel, Old Norse vimpill), of obscure origin; perhaps from a suffixed, nasalized form of PIE root *weip- "to turn" on the notion of "something that winds around." Old French guimple (French guimpe) is from Germanic.