ἔμπαιος

ον
A. knowing, practised in, c.gen., οὐδέ τι ἔργων ἔμπαιον οὐδὲ βίης [penult. short] Od. 20.379; κακῶν ἔμπαιος ἀλήτης 21.400; ἔ. δρόμων Lyc. 1321.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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