ruffle vs get at

ruffle is a noun but get at is not a noun.

Word	Noun	Adjective	Verb	Adverb
ruffle	Yes	No	Yes	No
get at	No	No	Yes	No

As verbs, get at is a hypernym of ruffle; that is, get at is a word with a broader meaning than ruffle:

Other hypernyms of ruffle include annoy, bother, chafe, devil, get to, gravel, irritate, nark, nettle, rag, rile, vex.

ruffle (noun)	get at (noun)
a noisy fight
a high tight collar
a strip of pleated material used as a decoration or a trim

ruffle (verb)	get at (verb)
pleat or gather into a ruffle	cause annoyance in; disturb, especially by minor irritations
erect or fluff up	reach or gain access to
disturb the smoothness of	influence by corruption
twitch or flutter
mix so as to make a random order or arrangement
trouble or vex
discompose
stir up (water) so as to form ripples
to walk with a lofty proud gait, often in an attempt to impress others