hasten vs tear

hasten is not a noun while tear is a noun.

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

As verbs, tear is a hyponym of hasten; that is, tear 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, dart, dash, flash, scoot, scud, shoot.

hasten (noun)	tear (noun)
	a drop of the clear salty saline solution secreted by the lacrimal glands
	the act of tearing
	an occasion for excessive eating or drinking
	an opening made forcibly as by pulling apart

hasten (verb)	tear (verb)
act at high speed	separate or cause to separate abruptly
cause to occur rapidly	to separate or be separated by force
move hurridly	strip of feathers
speed up the progress of; facilitate	move quickly and violently
	fill with tears or shed tears