begrime vs slime

begrime is not a noun while slime is a noun.

Word	Noun	Adjective	Verb	Adverb
begrime	No	No	Yes	No
slime	Yes	No	Yes	No

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

Other hyponyms of begrime include foul, contaminate, foul, pollute, smear, muddy, muddy up, splash, mire, muck, muck up, mud, crock, blemish, spot.

begrime (noun)	slime (noun)
	any thick, viscous matter

begrime (verb)	slime (verb)
make soiled, filthy, or dirty	cover or stain with slime