depreciation vs by-blow

depreciation and by-blow both are nouns.

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

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