Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
English epistolary
English epistle (mention)
French épistolaire (borrowed)
Ancient Greek ἐπιστολή (derived)
Ancient Greek ἐπιστέλλω (mention)
Ancient Greek ἐπί (mention)
Ancient Greek στέλλω (mention)
Latin *epistolarium (derived)
Latin epistola (mention)
Latin -arium (mention)

English epistolarily (suffix)