devilishness vs countenance

devilishness and countenance both are nouns.

Word	Noun	Adjective	Verb	Adverb
devilishness	Yes	No	No	No
countenance	Yes	No	Yes	No

As nouns, countenance is a hypernym of devilishness; that is, countenance is a word with a broader meaning than devilishness:

devilishness: The property of resembling or being characteristic of a devil.
countenance: the appearance conveyed by a person's face

Other hypernyms of devilishness include visage.

devilishness (noun)	countenance (noun)
The property of resembling or being characteristic of a devil.	the appearance conveyed by a person's face
	the human face (`kisser' and `smiler' and `mug' are informal terms for `face' and `phiz' is British)
	formal and explicit approval

devilishness (verb)	countenance (verb)
	consent to, give permission; permit