scupper vs impact

scupper and impact both are nouns.

Word	Noun	Adjective	Verb	Adverb
scupper	Yes	No	Yes	No
impact	Yes	No	Yes	No

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

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

scupper (noun)	impact (noun)
drain that allows water on the deck of a vessel to flow overboard	influencing strongly
	the violent interaction of individuals or groups entering into combat
	the striking of one body against another
	a forceful consequence; a strong effect

scupper (verb)	impact (verb)
put in a dangerous, disadvantageous, or difficult position	have an effect upon
wait in hiding to attack	press or wedge together; pack together