Quick Definition
ἑορτάζω v. I keep a feast
Strong's Definition
from 1859; to observe a festival
KJV Usage: keep the feast
UBS Dictionary of the Greek New Testament
verb | ἑορτή
51.1 · Festivals
to celebrate, to observe a feast, to participate in a festival to celebrate a festival or feast
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
ἑορτάζω ; (ἑορτή); to keep a feast-day, celebrate a festival: 1 Co. ν. 8, on which pass. see ἄζυμος. (Sept. for din; Eur., Arstph., Xen., Plato, al.; ὁρτάζω, Hat.)
Mounce Concise Greek Dictionary
ἑορτάζω heortazō 1x
to keep a feast, celebrate a festival, 1 Cor. 5:8*
Abbott-Smith Greek Lexicon
ἑορτάζω
(< ἑορτή), [in LXX for חָגַג ;]
to keep festival: I Co 5:8.†
Moulton & Milligan — Vocabulary of the Greek NT
ἑορτάζω. For this verb which in the NT is confined to 1 Cor 58, but is frequent in the LXX, cf. BGU II. 646° (A.D. 193), an order issued by a prefect during the short reign of the Emperor Pertinax—tva πάντες Ἰδιῆταζι] (Δ εἰδῆτε) καὶ ταῖς ἴσαις ἡμέραις ἑορτάσητί[α]ι (1. ἑορτάσητε). See also OG/S 49335 (11...) κ[αθ᾽ ἕκαστον ἐνιαυτὸν] ἑορτάζειν τὴν γενἔθλιον αὐ[τοῦ καὶ πᾶσιν] ἀνθρώποις αἰτίαν ἀγαθῶν ἡμέραν, with reference to a birthday celebration.
Liddell-Scott-Jones — Greek-English Lexicon
ἑορτάζω (heortazō) — to keep a festival. ἑορτάζω, in Ionic dialectProse ὁρτάζω· imperfect ἑώρταζον (with irregular augment) [Refs 5th c.BC+]: future -άσω[Refs 2nd c.AD+]: aorist ἑώρτασα [Refs 2nd c.AD+]; infinitive ἑορτάσαι [Refs 5th c.BC+]; compare διεορτάζω: (ἑορτή):—keep festival or holiday, [Refs 5th c.BC+]; ἑορτὰς ἑ. celebrate festivals, [Refs 5th c.BC+]; ἑ. τῷ θεῷ [Refs 2nd c.AD+]
II. celebrate as a festival, νίκην ἑ. celebrate it by a festival, [Refs 1st c.AD+]; at Rome, celebrate by a triumph, [Refs 2nd c.AD+]