\Knab\, v. t. [imp. & p. p. {Knabbed}; p. pr. & vb. n. {Knabbing}.] [See {Nab}, v. t., and cf. {Knap}, v. t.] 1. To seize with the teeth; to gnaw. ``Knabbing crusts.'' [Obs.] --L'Estrange. 2. To nab. See {Nab}, v. t. [Colloq.]
Webster's 1913 Dictionary