ἐπιλαμπρύνω

A. make splendid, adorn, τὴν οἰκίαν, τὸν οἶκον, Phld. Piet. 74, Plu. Lys. 30; γένος τιμαῖς D.H. 6.41.
2. . of sound, make loud and clear, raise high, τὸν ἦχον Id. Comp. 14; τὴν φωνήν, of frogs, Plu. 2.912c.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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