Old Greek is the Greek language as spoken from Late Antiquity (c. 400 AD) to c. 1500.
Greek spoken during this period is usually split into: "Old Greek" (OG) is also the technical term for the presumed initial Greek translations[1] of the Hebrew Bible[2] for books other than the Pentateuch.
[3] Old Greek might also be understood to include a preceding period, Koine Greek, as well – also referred to as "the common dialect" or "Alexandrian dialect", "common Attic" or "Hellenistic Greek" – the universal dialect spoken throughout post-Classical antiquity (c. 300 BC – 300 AD).