According to the Hellenistic manner or dialect.

Of or relating to the period of the Greek culture, history, or art after the death of Alexander the Great (323 B.C.) to the defeat of Cleopatra and Mark Antony by Octavian (31 B.C.)--though this end-point is often debated, and can range from 146BC to 330ADhttps://en.wikipedia.org/wiki/Hellenistic_period.

Hellenistic

plural of Hellenist

A specialist in the study of Greek language, literature, culture, or history, or an admirer of the Greek culture and civilization.

Synonym of Koine (the Greek dialect of Hellenistic times)

Synonym of Koine (the Greek language from the time of Alexander the Great)