muckle vs plenty

muckle and plenty both are nouns.

Word	Noun	Adjective	Verb	Adverb
muckle	Yes	No	No	No
plenty	Yes	No	No	Yes

As nouns, muckle and plenty are synonyms defined as:

muckle and plenty: (often followed by `of') a large number or amount or extent

muckle (noun)	plenty (noun)
(often followed by `of') a large number or amount or extent	a full supply
	(often followed by `of') a large number or amount or extent

muckle (adverb)	plenty (adverb)
	as much as necessary