colly vs grime

colly is not a noun while grime is a noun.

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

As verbs, colly and grime are synonyms defined as:

Other synonyms of colly include begrime, bemire, dirty, soil.

colly (noun)	grime (noun)
	anything regarded as making something unclean

colly (verb)	grime (verb)
make soiled, filthy, or dirty	make soiled, filthy, or dirty