εὐφραίνω
[in LXX chiefly for שָׂמַח, qal, pi.;]
to cheer, gladden: c. acc pers., opp. to λυπεῖν, II Co 2:2. Pass., to be happy, rejoice, make merry: Lk 15:32, Ac 2:26(LXX)Ro 15:10(LXX), Ga 4:27 (LXX), Re 11:1012:12; seq. ἐν, Ac 7:41; ἐπί c. dat., Re 18:20; of merry-making at a feast (III Ki 4:20; cf. Kennedy, Sources, 155; Field, Notes, 69 f.), Lk 12:1915:23, 24, 29(LXX) (λαμπρῶς) Lk 16:19.†