begrime vs muck up

begrime and muck up both are verbs.

Word	Noun	Adjective	Verb	Adverb
begrime	No	No	Yes	No
muck up	No	No	Yes	No

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

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

begrime (verb)	muck up (verb)
make soiled, filthy, or dirty	soil with mud, muck, or mire
	make a mess of, destroy or ruin