faintness vs depreciation

faintness and depreciation both are nouns.

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

faintness (noun)	depreciation (noun)
the quality of being dim or lacking contrast	a decrease in price or value
barely audible	a communication that belittles somebody or something
the property of being without strength	decrease in value of an asset due to obsolescence or use
the trait of lacking boldness and courage
a feeling of faintness and of being ready to swoon