What is the Latin word for epistolary?

The usual Latin words for “epistolary” are epistola, ĕpīstŏlĭcus. The right choice depends on the sense; see the distinctions below.

English → Latin

“epistolary” in Latin

epistolaa letter, epistle; a written imperial decree ĕpīstŏlĭcuspertaining to

The English word epistolary itself goes back to Latin epistola, through epistolārius.

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

epistolary

mostly by genitive: epistolarum (epistolicus, Gell.; epistolaris, Augustin). Epistolary correspondence, commercium epistolarum: litterae remittendae atque accipiendae: litterarum sermo. An active epistolary correspondence, litterarum crebritas: litterarum frequentia. To have an epistolary correspondence with anybody, *epistolarum commercium habere cum aliquo; colloqui cum aliquo per litteras.

Quick answer

What is the Latin word for epistolary?: The usual Latin words for “epistolary” are epistola, ĕpīstŏlĭcus. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.