Nag (?), n. [OE. nagge, D. negge; akin to E. neigh.]
1.
A small horse; a pony; hence, any horse.
2.
A paramour; -- in contempt.
[Obs.]
Shak.
© Webster 1913.
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.
© Webster 1913.