wretchedness vs woe

wretchedness and woe both are nouns.

Word	Noun	Adjective	Verb	Adverb
wretchedness	Yes	No	No	No
woe	Yes	No	No	No

As nouns, woe is a hyponym of wretchedness; that is, woe is a word with a more specific, narrower meaning than wretchedness:

Other hyponyms of wretchedness include concentration camp, living death, suffering.

wretchedness (noun)	woe (noun)
the quality of being poor and inferior and sorry	intense mournfulness
a state of ill-being due to affliction or misfortune	misery resulting from affliction
the character of being uncomfortable and unpleasant