palpitation vs quiver

palpitation and quiver both are nouns.

Word	Noun	Adjective	Verb	Adverb
palpitation	Yes	No	No	No
quiver	Yes	No	Yes	No

As nouns, palpitation and quiver are synonyms defined as:

Other synonyms of palpitation include quivering, shakiness, shaking, trembling, vibration.

palpitation (noun)	quiver (noun)
a rapid and irregular heart beat	the act of vibrating
a shaky motion	case for holding arrows
	an almost pleasurable sensation of fright
	a shaky motion

palpitation (verb)	quiver (verb)
	shake with fast, tremulous movements
	move with or as if with a regular alternating motion
	move back and forth very rapidly