properness vs demeanor

properness and demeanor both are nouns.

Word	Noun	Adjective	Verb	Adverb
properness	Yes	No	No	No
demeanor	Yes	No	No	No

As nouns, demeanor is a hypernym of properness; that is, demeanor is a word with a broader meaning than properness:

properness: correct or appropriate behavior
demeanor: (behavioral attributes) the way a person behaves toward other people

Other hypernyms of properness include behavior, behaviour, conduct, demeanour, deportment.

properness (noun)	demeanor (noun)
correct or appropriate behavior	(behavioral attributes) the way a person behaves toward other people