dolor vs brokenheartedness

dolor and brokenheartedness both are nouns.

Word	Noun	Adjective	Verb	Adverb
dolor	Yes	No	No	No
brokenheartedness	Yes	No	No	No

As nouns, brokenheartedness is a hypernym of dolor; that is, brokenheartedness is a word with a broader meaning than dolor:

dolor: (poetry) painful grief
brokenheartedness: intense sorrow caused by loss of a loved one (especially by death)

Other hypernyms of dolor include grief, heartache, heartbreak.

dolor (noun)	brokenheartedness (noun)
(poetry) painful grief	intense sorrow caused by loss of a loved one (especially by death)