pale vs discolor

pale is a noun but discolor is not a noun.

Word	Noun	Adjective	Verb	Adverb
pale	Yes	Yes	Yes	No
discolor	No	No	Yes	No

As verbs, discolor is a hypernym of pale; that is, discolor is a word with a broader meaning than pale:

Other hypernyms of pale include color, colour, discolour.

pale (noun)	discolor (noun)
a wooden strip forming part of a fence

pale (adjective)	discolor (adjective)
abnormally deficient in color as suggesting physical or emotional distress
lacking in vitality or interest or effectiveness
very light colored; highly diluted with white
not full or rich
(of light) lacking in intensity or brightness; dim or feeble

pale (verb)	discolor (verb)
turn pale, as if in fear	change color, often in an undesired manner
	lose color or turn colorless
	cause to lose or change color