deary vs favourite

deary and favourite both are nouns.

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

As nouns, deary and favourite are synonyms defined as:

Other synonyms of deary include darling, dearie, ducky, favorite, pet.

deary (noun)	favourite (noun)
a special loved one	something regarded with special favor or liking
a beloved person; used as terms of endearment	a special loved one
	a competitor thought likely to win

deary (adjective)	favourite (adjective)
	preferred above all others and treated with partiality
	appealing to the general public

deary (verb)	favourite (verb)
	To mark an item as a personal favorite on social media