blessedness vs happiness

blessedness and happiness both are nouns.

Word	Noun	Adjective	Verb	Adverb
blessedness	Yes	No	No	No
happiness	Yes	No	No	No

As nouns, happiness is a hypernym of blessedness; that is, happiness is a word with a broader meaning than blessedness:

blessedness: a state of supreme happiness
happiness: state of well-being characterized by emotions ranging from contentment to intense joy

Other hypernyms of blessedness include felicity.

blessedness (noun)	happiness (noun)
a state of supreme happiness	emotions experienced when in a state of well-being
	state of well-being characterized by emotions ranging from contentment to intense joy