ἱλαρόω

A. gladden, brighten, LXX Si. 7.24,al., Aristeas 108; λόγους Phld. Mus. p.99 K.:—also ἱλαρ‐ύνω, LXX Ps. 103(104).15:—Pass., fut. ‐υνθήσομαι, aor. ‐ύνθην, PMag.Leid.W. 12.30, 5.20.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project