Īsaeus (noun M) : Ἰσαῖος. * A Grecian orator of Chalcis, instructor of Demosthenes, Quint. 12, 10, 22. * A contemporary of the younger Pliny, also a Grecian orator, Plin. Ep. 2, 3 init.; Juv. 3, 74.
Charlton T. Lewis, Charles Short, A Latin Dictionary
PIR
Male Personal name Confirmed occurences in the Roman Empire: