Main Entry: ¹epis·to·lary

Pronunciation: \i-ˈpis-tə-ˌler-ē, ˌe-pi-ˈstȯ-lə-rē\

Function: adjective

Date: circa 1656

1 : of, relating to, or suitable to a letter
2 : contained in or carried on by letters <an endless sequence of…epistolary love affairs — Times Literary Supplement>
3 : written in the form of a series of letters <an epistolary novel>