hasten vs dart

hasten is not a noun while dart is a noun.

Word	Noun	Adjective	Verb	Adverb
hasten	No	No	Yes	No
dart	Yes	No	Yes	No

As verbs, dart is a hyponym of hasten; that is, dart is a word with a more specific, narrower meaning than hasten:

Other hyponyms of hasten include barge, push forward, thrust ahead, buck, charge, shoot, shoot down, tear, dash, flash, scoot, scud, shoot.

hasten (noun)	dart (noun)
	a sudden quick movement
	a tapered tuck made in dressmaking
	a small narrow pointed missile that is thrown or shot

hasten (verb)	dart (verb)
act at high speed	run or move very quickly or hastily
cause to occur rapidly	move along rapidly and lightly; skim or dart
move hurridly	move with sudden speed
speed up the progress of; facilitate