"to catch (someone), 1686, probably a variant of dial. nap "to seize, catch, lay hold of" (1673, now surviving only in kidnap), which is possibly from Scand. (cf. Norw. nappe "to catch, snatch;" Swed. nappa; Dan. nappe "to pinch, pull"), reinforced by M.E. napand "grasping, greedy."