endangerment vs peril

endangerment and peril both are nouns.

Word	Noun	Adjective	Verb	Adverb
endangerment	Yes	No	No	No
peril	Yes	No	Yes	No

As nouns, endangerment and peril are synonyms defined as:

endangerment and peril: a source of danger; a possibility of incurring loss or misfortune

Other synonyms of endangerment include hazard, jeopardy, risk.

endangerment (noun)	peril (noun)
a source of danger; a possibility of incurring loss or misfortune	a venture undertaken without regard to possible loss or injury
	a source of danger; a possibility of incurring loss or misfortune
	a state of danger involving risk

endangerment (verb)	peril (verb)
	put in a dangerous, disadvantageous, or difficult position
	pose a threat to; present a danger to