ADJ.
novel
EPISTOLARY + NOUN
relationship
adj
Of or relating to letters, or the writing of letters.
Carried on by written correspondence.
an epistolary relationship
In the manner of written correspondence.
epistolary style
an epistolary novel
noun
A Christian liturgical book containing set readings for church services from the New Testament Epistles.
adjective — written in the form of or carried on by letters or correspon