εὖ
adv.
(prop. neuter of old Epic ἐΰς, good, noble) [in LXX, εὖ γίγνεσθαι, εὖ ποιεῖν (יָטַב);]
well: εὖ γιν., Eph 6:3(LXX); εὖ ποιεῖν, c. dat. (cf. Si 12:1-2), to do good, Mk 14:7 (where Nestle suggests εὐποιεῖν, q.v.); εὖ πράσστειν, to fare well, Ac 15:29; in replies (= εὖγε), good! well done!Mt 25:21, 23Lk 19:17 (εὖγε, WH, txt.).†