[pounce] n [ME, talon] (15c): the claw of a bird of prey
[2]pounce vi pounced ; pounc.ing (1744) 1 a: to swoop upon and seize something with or as if with talons b: to seize upon and make capital of something (as another's blunder or an opportunity)
2: to make a sudden assault or approach [3]pounce n (1841): the act of pouncing [4]pounce vt pounced ; pounc.ing [MF poncer, fr. ponce] (1535): to dust, rub, finish, or stencil with pounce [5]pounce n [F ponce pumice, fr. MF, fr. LL pomic-, pomex, alter. of L pumic-, pumex--more at foam] (1706) 1: a fine powder formerly used to prevent ink from spreading
2: a fine powder for making stenciled patterns