colly vs muddy

colly is not an adjective while muddy is an adjective.

Word	Noun	Adjective	Verb	Adverb
colly	No	No	Yes	No
muddy	No	Yes	Yes	No

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

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

colly (adjective)	muddy (adjective)
	dirty and messy; covered with mud or muck
	(of color) discolored by impurities; not bright and clear
	(of liquids) clouded as with sediment
	(of soil) soft and watery