nagger vs nag

nagger and nag both are nouns.

Word	Noun	Adjective	Verb	Adverb
nagger	Yes	No	No	No
nag	Yes	No	Yes	No

As nouns, nagger and nag are synonyms defined as:

nagger and nag: someone (especially a woman) who annoys people by constantly finding fault

Other synonyms of nagger include common scold, scold, scolder.

nagger (noun)	nag (noun)
someone (especially a woman) who annoys people by constantly finding fault	an old or over-worked horse
	someone (especially a woman) who annoys people by constantly finding fault

nagger (verb)	nag (verb)
	remind or urge constantly
	bother persistently with trivial complaints
	worry persistently