heave vs heaver

heave and heaver both are nouns.

Word	Noun	Adjective	Verb	Adverb
heave	Yes	No	Yes	No
heaver	Yes	No	No	No

heave (noun)	heaver (noun)
throwing something heavy (with great effort)	a bar used as a lever (as in twisting rope)
the act of lifting something with great effort	a workman who heaves freight or bulk goods (especially at a dockyard)
the act of raising something
an involuntary spasm of ineffectual vomiting
(geology) a horizontal dislocation
an upward movement (especially a rhythmical rising and falling)

heave (verb)	heaver (verb)
make an unsuccessful effort to vomit; strain to vomit
breathe noisily, as when one is exhausted
bend out of shape, as under pressure or from heat
utter a sound, as with obvious effort
lift or elevate
throw with great effort
rise and move, as in waves or billows
move or cause to move in a specified way, direction, or position