bear on vs peril

bear on is not a noun while peril is a noun.

Word	Noun	Adjective	Verb	Adverb
bear on	No	No	Yes	No
peril	Yes	No	Yes	No

As verbs, peril is a hyponym of bear on; that is, peril is a word with a more specific, narrower meaning than bear on:

bear on (noun)	peril (noun)
	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

bear on (verb)	peril (verb)
have an effect upon	put in a dangerous, disadvantageous, or difficult position
press, drive, or impel (someone) to action or completion of an action	pose a threat to; present a danger to
be relevant to
keep or maintain in unaltered condition; cause to remain or last