depreciate vs decrease

depreciate is not a noun while decrease is a noun.

Word	Noun	Adjective	Verb	Adverb
depreciate	No	No	Yes	No
decrease	Yes	No	Yes	No

As verbs, decrease is a hypernym of depreciate; that is, decrease is a word with a broader meaning than depreciate:

Other hypernyms of depreciate include diminish, fall, lessen.

depreciate (noun)	decrease (noun)
	the act of decreasing or reducing something
	the amount by which something decreases
	a change downward
	a process of becoming smaller or shorter

depreciate (verb)	decrease (verb)
lose in value	decrease in size, extent, or range
lower the value of something	make become smaller
belittle