hellenistic idiom

from The Collaborative International Dictionary of English v.0.48

Hellenistic \Hel`le*nis"tic\, Hellenistical \Hel`le*nis"tic*al\,
   a. [Cf. F. Hell['e]nistique.]
   Pertaining to the Hellenists.
   [1913 Webster]

   {Hellenistic language}, {Hellenistic dialect}, or
   {Hellenistic idiom}, the Greek spoken or used by the Jews who
      lived in countries where the Greek language prevailed; the
      Jewish-Greek dialect or idiom of the Septuagint.
      [1913 Webster]