Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
epistolatory is an adjective meaning "written in the form of or carried on by letters or correspondence". It carries one recorded sense.
written in the form of or carried on by letters or correspondence
“an endless sequence of epistolary love affairs”
“the epistolatory novel”
Definitions, synonyms and semantic relations for epistolatory come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.