devil vs get at

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

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

As verbs, devil and get at are synonyms defined as:

devil and get at: cause annoyance in; disturb, especially by minor irritations

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

devil (noun)	get at (noun)
a word used in exclamations of confusion
an evil supernatural being
a cruel wicked and inhuman person
a rowdy or mischievous person (usually a young man)

devil (verb)	get at (verb)
coat or stuff with a spicy paste	cause annoyance in; disturb, especially by minor irritations
cause annoyance in; disturb, especially by minor irritations	reach or gain access to
	influence by corruption