Quick Definition
εὐφραίνω v. I cheer, am glad, make merry
Strong's Definition
from 2095 and 5424; to put (middle voice or passively, be) in a good frame of mind, i.e. rejoice
KJV Usage: fare, make glad, be (make) merry, rejoice
UBS Dictionary of the Greek New Testament
verb | aor.pass. ηὐφράνθην · inf. εὐφρανθῆναι | φρονέω
25.131 · Attitudes and Emotions · Happy, Glad, Joyful
to make glad, to cheer up, to cause to be happy to cause someone to be or become happy or glad
25.122 · (εὐφραίνομαι[a]) · Attitudes and Emotions · Happy, Glad, Joyful
to rejoice to rejoice as an expression of happiness In some languages it may be necessary to translate εὐφραίνομαι in ACT 2:26 in an idiomatic manner, for example, ‘my heart sings’ or ‘my heart shouts because it is happy.’ For another interpretation of εὐφραίνομαι in ACT 7:41, see 51.3.
ACT 2:26 · ACT 7:41 · ROM 15:10 · GAL 4:27 · REV 12:12 · REV 18:20
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
εὐφραίνω ; Pass., pres. eippaivouar; impf. εὐφραινόμην (Acts vii. 41, where a few codd. nidp. [οἵ. WH. App. p- 1027); 1 aor. εὐφράνθην and 1, T Tr WH nip. (Acts ii. 26; see reff. in εὐδοκέω, init.) ; 1 fut. εὐφρανθήσομαι ; (ed and φρήν) ; in Sept. very often actively for Maw to make joyful, and pass. for ΤΙΣ to be joyful, sometimes for 1) to sing; in Grk. writ. fr. Hom. down; to gladden, make joyful: twa, 2 Co. ii. 2 (opp. to λυπεῖν). Pass. to be glad, to be merry, to rejoice: absol., Lk. xv. 32; Acts ii. 26 (fr. Ps. xv. (xvi.) 9); Ro. xv. 10 (fr. Deut. xxxii. 43); Gal. iv. 27 (fr. Is. liv. 1); Rev. xi. 10; xii. 12; ἔν τινι, to rejoice in, be delighted with, a thing, Acts vii. 41 (Xen. Hier. 1, 16); ἐπί τινι, Rev. xviii. 20 L T Tr WH (for Ree. ἐπ᾽ αὐτήν) ; of the merriment of a feast, Lk. xii. 19; xv. 23 sq. 29, (Deut. xiv. 25 (26); xxvii. 7); with λαμπρῶς added, to live sumptuously: Lk. xvi. 19 (Hom. Od. 2, 311; Xen. Cyr. 8, 7, 12).
Mounce Concise Greek Dictionary
εὐφραίνω euphrainō 14x
to gladden, 2 Cor. 2:2; pass. to be glad, exult, rejoice, Lk. 12:19; Acts 2:26; mid. to feast in token of joy, keep a day of rejoicing, Lk. 15:23, 24, 29, 32
Abbott-Smith Greek Lexicon
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 11:10 12:12; 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 12:19 15:23, 24, 29 (LXX) (λαμπρῶς) Lk 16:19.†
Liddell-Scott-Jones — Greek-English Lexicon
εὐφραίνω (euphrainō) — to celebrate. εὐφραίνω, Epic dialect ἐϋφρ-, future Attic dialect εὐφρᾰνῶ [Refs 4th c.BC+], Ionic dialect and Epic dialect εὐφρανέω [Refs 8th c.BC+]aorist 1 εὔφρᾱνα or ηὔφρ-[Refs 5th c.BC+]; Epic dialect εὔφρηνα [Refs 8th c.BC+], subjunctive ἐϋφρήνῃς [Refs]:—passive, with future middle εὐφρᾰνοῦμαι [Refs 5th c.BC+]; Ionic dialect 2nd pers. singular εὐφρανέαι (variant -έεαι) [Refs 5th c.BC+]; also passive εὐφρανθήσομαι [Refs 5th c.BC+]aorist 1 εὐφράνθην or ηὐ- [Refs 5th c.BC+]: (εὔφρων):—cheer, gladden, εὐφρανέειν ἄλοχον [Refs 8th c.BC+]; νόον, φρένα, [Refs 8th c.BC+]
II. passive, make merry, enjoy oneself, εὐφραίνεσθαι ἕκηλον [NT+8th c.BC+]; τινι at or in a thing, [Refs 5th c.BC+]participle, εὐφράνθη ἰδών was rejoiced at seeing, [Refs 5th c.BC+]; τὰ ἐμὰ εὐ. enjoy a pleasure in my stead, [Refs 2nd c.AD+]