LSJ
Pass., (< ἐνεός) become mute, Thd. Da. 4.16.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
TBESG
to silence; to render speechless (MT)
Translators Brief lexicon of Extended Strongs for Greek based on Abbot-Smith, A Manual Greek Lexicon of the New Testament (1922) (=AS), with corrections and adapted by Tyndale Scholars