scupper vs bear on

scupper is a noun but bear on is not a noun.

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

As verbs, bear on is a hypernym of scupper; that is, bear on is a word with a broader meaning than scupper:

Other hypernyms of scupper include affect, bear upon, impact, touch, touch on.

scupper (noun)	bear on (noun)
drain that allows water on the deck of a vessel to flow overboard

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