A most interesting and important contribution is made to the history of colloquial Greek in connection with the language of the New Testament by the vocabulary of Aristophanes. In his case we have the advantage of seeing the phenomena of the Greek popular vocabulary at a definite stage in Greek history. So a landmark is given by which the past of the colloquial language and its future may be estimated. Besides, Aristophanes lived in the Golden Age of the Attic dialect, when the sense for language had reached its highest pitch. Accordingly, one may expect that the “popular” words admitted by him are, at least, on the higher level of the “conversational ” type of speech. This gives an additional criterion for the New Testament vocabulary…

Cf. A Greek Vocabulary – Basic New Testament Words, An outline of Greek grammar