[nag] n [ME nagge; akin to D negge small horse] (15c): horse; esp: one that is old or in poor condition
[2]nag vb nagged ; nag.ging [prob. of Scand origin; akin to ON gnaga to gnaw; akin to OE gnagan to gnaw] vi (ca. 1828) 1: to find fault incessantly: complain
2: to be a persistent source of annoyance or distraction ~ vt 1: to irritate by constant scolding or urging
2: badger, worry -- nag.ger n -- nagging adj -- nag.ging.ly adv [3]nag n (1925): one who nags habitually