deviance vs abnormalcy

deviance and abnormalcy both are nouns.

Word	Noun	Adjective	Verb	Adverb
deviance	Yes	No	No	No
abnormalcy	Yes	No	No	No

As nouns, abnormalcy is a hypernym of deviance; that is, abnormalcy is a word with a broader meaning than deviance:

deviance: a state or condition markedly different from the norm
abnormalcy: an abnormal physical condition resulting from defective genes or developmental deficiencies

Other hypernyms of deviance include abnormality.

deviance (noun)	abnormalcy (noun)
deviate behavior	an abnormal physical condition resulting from defective genes or developmental deficiencies
a state or condition markedly different from the norm