decrement vs increment

decrement and increment both are nouns.

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

decrement (noun)	increment (noun)
the amount by which something decreases	the amount by which something increases
a process of becoming smaller or shorter	a process of becoming larger or longer or more numerous or more important