Mickle is a fabulous archaic word! I find it a pity that it has fallen out of usage. As a noun, it signifies a "great amount." As an adjective it signifies "great" as in "large" or "abundant," and as an adverb it signifies "much" or "greatly." Furthermore, its Scottish twin is muckle. There's a bilabial smack of satisfaction with each syllable. Now I just need to think of excuses to randomly insert the word "mickle" into my conversation and utterly betray myself as an English major . . .
*I have a mickle mountain of books to study for the Praxis II. Mt. Everest would be jealous.
(Here's a minor foothill . . .)