epistolatory vs epistolary

epistolatory and epistolary both are adjectives.

Word	Noun	Adjective	Verb	Adverb
epistolatory	No	Yes	No	No
epistolary	No	Yes	No	No

As adjectives, epistolatory and epistolary are synonyms defined as:

epistolatory and epistolary: written in the form of or carried on by letters or correspondence

epistolatory (adjective)	epistolary (adjective)
written in the form of or carried on by letters or correspondence	written in the form of or carried on by letters or correspondence