Ἑλληνιστής
From LSJ
Νέος πεφυκὼς πολλὰ χρηστὰ μάνθανε → Dum floret aetas, disce, quod scitum decet → In jungem Alter lerne viel, was brauchbar ist
English (LSJ)
οῦ, ὁ,
A one who uses the Greek language: a Greek Jew, Act.Ap.6.1, etc. II gentile, heathen, Jul.Ep.84a.
Greek (Liddell-Scott)
Ἑλληνιστής: -οῦ, ὁ, ὁ χρώμενος τῇ Ἑλληνικῇ γλώσσῃ, ὅ ἐ. ἐν τῇ Κ. Δ. Ἰουδαῖος τὴν Ἑλληνικὴν ὁμιλῶν, Πράξεις Ἀποστ. ϛ΄, 1, κτλ. ΙΙ. παρὰ μεταγεν. Ἐκκλ. ἐνίοτε, ὡς τὸ Ἕλλην Ι. 4, ἐθνικός.
English (Strong)
from a derivative of Ἕλλην; a Hellenist or Greek-speaking Jew: Grecian.