bemire vs muck up

bemire and muck up both are verbs.

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

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

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

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