frock vs garb

frock and garb both are nouns.

Word	Noun	Adjective	Verb	Adverb
frock	Yes	No	Yes	No
garb	Yes	No	Yes	No

As verbs, garb is a hypernym of frock; that is, garb is a word with a broader meaning than frock:

Other hypernyms of frock include apparel, clothe, dress, enclothe, fit out, garment, habilitate, raiment, tog.

frock (noun)	garb (noun)
a one-piece garment for a woman; has skirt and bodice	clothing of a distinctive style or for a particular occasion
a habit worn by clerics
a long, loose outer garment

frock (verb)	garb (verb)
put a frock on	provide with clothes or put clothes on