Etymology
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wuss (n.)

1982, abbreviated from wussy.

Mike Damone: "You are a wuss: part wimp, and part pussy"
["Fast Times at Ridgemont High" script, 1982]
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wussy (n.)
1960s, probably an alteration of pussy (n.2). DAS suggests shortened from hypothetical pussy-wussy, reduplicated form of pussy (n.1).
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