by-blow vs depreciation

by-blow and depreciation both are nouns.

Word	Noun	Adjective	Verb	Adverb
by-blow	Yes	No	No	No
depreciation	Yes	No	No	No

by-blow (noun)	depreciation (noun)
the illegitimate offspring of unmarried parents	a decrease in price or value
	a communication that belittles somebody or something
	decrease in value of an asset due to obsolescence or use