mortgagor vs debtor

mortgagor and debtor both are nouns.

Word	Noun	Adjective	Verb	Adverb
mortgagor	Yes	No	No	No
debtor	Yes	No	No	No

As nouns, debtor is a hypernym of mortgagor; that is, debtor is a word with a broader meaning than mortgagor:

mortgagor: the person who gives a mortgage in return for money to be repaid
debtor: a person who owes a creditor; someone who has the obligation of paying a debt

Other hypernyms of mortgagor include debitor.

mortgagor (noun)	debtor (noun)
the person who gives a mortgage in return for money to be repaid	a person who owes a creditor; someone who has the obligation of paying a debt