disconcert vs pain

disconcert is not a noun while pain is a noun.

Word	Noun	Adjective	Verb	Adverb
disconcert	No	No	Yes	No
pain	Yes	No	Yes	No

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

disconcert (noun)	pain (noun)
	a somatic sensation of acute discomfort
	something or someone that causes trouble; a source of unhappiness
	emotional distress; a fundamental feeling that people try to avoid
	a symptom of some physical hurt or disorder

disconcert (verb)	pain (verb)
cause to lose one's composure	cause bodily suffering to and make sick or indisposed
cause to feel embarrassment	cause emotional anguish or make miserable