plaguey vs depreciation

plaguey is not a noun while depreciation is a noun.

Word	Noun	Adjective	Verb	Adverb
plaguey	No	Yes	No	Yes
depreciation	Yes	No	No	No

plaguey (noun)	depreciation (noun)
	a decrease in price or value
	a communication that belittles somebody or something
	decrease in value of an asset due to obsolescence or use

plaguey (adjective)	depreciation (adjective)
causing irritation or annoyance
likely to spread and cause an epidemic disease

plaguey (adverb)	depreciation (adverb)
in a pernicious or annoying manner