empurpled vs purple

empurpled is not a noun while purple is a noun.

Word	Noun	Adjective	Verb	Adverb
empurpled	No	Yes	No	No
purple	Yes	Yes	Yes	No

As adjectives, empurpled and purple are synonyms defined as:

Other synonyms of empurpled include over-embellished.

empurpled (noun)	purple (noun)
	(Roman Catholic Church) official dress of a cardinal; so named after the Tyrial purple color of the robes
	a color between red and blue
	(in ancient Rome) position of imperial status

empurpled (adjective)	purple (adjective)
excessively elaborate or showily expressed	of a color intermediate between red and blue
	belonging to or befitting a supreme ruler
	excessively elaborate or showily expressed

empurpled (verb)	purple (verb)
	color purple
	become purple