Prude

Prude (?), n. [F., prudish, originally, discreet, modest; shortened from OF. prudefeme, preudefeme, a discreet or excellent woman; OF. preu, prou, excellent, brave + de of + fete woman. See Prow, a., Prowess.] A woman of affected modesty, reserve, or coyness; one who is overscrupulous or sensitive; one who affects extraordinary prudence in conduct and speech.

Less modest than the speech of prudes.
Swift.