Nag, v. t. & i. [imp. & p. p. Nagged (?); p. pr. & vb. n. Nagging (?).]
[Cf. Sw. nagga to nibble, peck, Dan. nage to gnaw, Icel. naga, gnaga,
G. nagen, & E. gnaw.] To tease in a petty way; to scold habitually; to
annoy; to fret pertinaciously. [Colloq.] "She never nagged." J.
Ingelow.
Nag"ging (?), a. Fault-finding; teasing; persistently annoying; as, a
nagging toothache. [Colloq.]