decrement vs amount

decrement and amount both are nouns.

Word	Noun	Adjective	Verb	Adverb
decrement	Yes	No	No	No
amount	Yes	No	Yes	No

As nouns, amount is a hypernym of decrement; that is, amount is a word with a broader meaning than decrement:

decrement (noun)	amount (noun)
the amount by which something decreases	how much there is or how many there are of something that you can quantify
a process of becoming smaller or shorter	the relative magnitude of something with reference to a criterion
	a quantity obtained by the addition of a group of numbers
	a quantity of money

decrement (verb)	amount (verb)
	to measure up to in kind or quality
	add up in number or quantity
	be tantamount or equivalent to