Akademik

nag
1.
v. & n.
—v. (nagged, nagging)
1 a tr. annoy or irritate (a person) with persistent fault-finding or continuous urging. b intr. (often foll. by at) find fault, complain, or urge, esp. persistently.
2 intr. (of a pain) ache dully but persistently.
3 a tr. worry or preoccupy (a person, the mind, etc.) (his mistake nagged him). b intr. (often foll. by at) worry or gnaw.
—n. a persistently nagging person.
Derivatives:
nagger n. naggingly adv.
Etymology: of dial., perh. Scand. or LG, orig.: cf. Norw. & Sw. nagga gnaw, irritate, LG (g)naggen provoke
2.
n.
1 colloq. a horse.
2 a small riding-horse or pony.
Etymology: ME: orig. unkn.

Useful english dictionary. 2012.