sequela vs abnormalcy

sequela and abnormalcy both are nouns.

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

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

sequela: any abnormality following or resulting from a disease or injury or treatment
abnormalcy: an abnormal physical condition resulting from defective genes or developmental deficiencies

Other hypernyms of sequela include abnormality.

sequela (noun)	abnormalcy (noun)
any abnormality following or resulting from a disease or injury or treatment	an abnormal physical condition resulting from defective genes or developmental deficiencies