deary vs dearest

deary and dearest both are nouns.

Word	Noun	Adjective	Verb	Adverb
deary	Yes	No	No	No
dearest	Yes	No	No	No

As nouns, deary and dearest are synonyms defined as:

Other synonyms of deary include baby, beloved, darling, dear, dearie, honey, love, sweetheart, sweetie.

deary (noun)	dearest (noun)
a special loved one	a beloved person; used as terms of endearment
a beloved person; used as terms of endearment