supplicatory vs supplicant

supplicatory is not a noun while supplicant is a noun.

Word	Noun	Adjective	Verb	Adverb
supplicatory	No	Yes	No	No
supplicant	Yes	Yes	No	No

As adjectives, supplicatory and supplicant are synonyms defined as:

Other synonyms of supplicatory include suppliant.

supplicatory (noun)	supplicant (noun)
	one praying humbly for something
	someone who prays to God

supplicatory (adjective)	supplicant (adjective)
humbly entreating	humbly entreating