depreciate vs write off

depreciate and write off both are verbs.

Word	Noun	Adjective	Verb	Adverb
depreciate	No	No	Yes	No
write off	No	No	Yes	No

As verbs, write off is a hyponym of depreciate; that is, write off is a word with a more specific, narrower meaning than depreciate:

Other hyponyms of depreciate include expense, write down.

depreciate (verb)	write off (verb)
lose in value	reduce the estimated value of something
lower the value of something	concede the loss or worthlessness of something or somebody
belittle	write something fluently, and without hesitation
	cancel (a debt)