Ἐπιστολαί

aka Epistolae

Epistles

The Epistles of Plato are a series of thirteen letters traditionally included in the Platonic corpus. With the exception of the Seventh Letter, they are generally considered to be forgeries; many scholars even reject the seventh. They were "generally accepted as genuine until modern times"; but by the close of the nineteenth century, many philologists believed that none of the letters were actually written by Plato.— Wikipedia