fag vs overtire

fag is a noun but overtire is not a noun.

Word	Noun	Adjective	Verb	Adverb
fag	Yes	No	Yes	No
overtire	No	No	Yes	No

As verbs, overtire is a hyponym of fag; that is, overtire is a word with a more specific, narrower meaning than fag:

Other hyponyms of fag include beat, exhaust, tucker, tucker out, wash up, overfatigue, overweary.

fag (noun)	overtire (noun)
finely ground tobacco wrapped in paper; for smoking
offensive term for a homosexual man

fag (verb)	overtire (verb)
exhaust or get tired through overuse or great strain or stress	tire excessively
work hard
act as a servant for older boys, in British public schools