Quick Definition
δάκνω v. I bite, backbite, harm seriously
Strong's Definition
a prolonged form of a primary root; to bite, i.e. (figuratively) thwart
KJV Usage: bite
UBS Dictionary of the Greek New Testament
verb
20.26 · Violence, Harm, Destroy, Kill · Harm, Wound
to harm (a figurative extension of meaning of δάκνω ‘to bite,’ not occurring in the NT) to cause personal harm to someone
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
δάκνω; (obite; a. prop. withthe teeth. Ὄ. metaph. to wound the soul, cut, lacerate, rend with reproaches : Gal. v. 15. So even in Hom. Il. 5, 493 μῦθος δάκε φρένας, Menand. ap. Athen. 12, 77 p. 552 e., and times without number in other auth.
Mounce Concise Greek Dictionary
δάκνω daknō 1x
to bite, sting; met. to molest, vex, injure, Gal. 5:15*
Abbott-Smith Greek Lexicon
δάκνω
[in LXX for נשׁךְ, Ge 49:17, al., exc. De 8:15 (שׂרף) ;]
to bite: metaph., Ga 5:15.†
Moulton & Milligan — Vocabulary of the Greek NT
δάκνω survives in MGr δαγκάνω, also δάκνω, with noun δάγκαμα “a bite,” which puts it among words which have not changed in 3000 years. But we cannot quote from Κοινή documents. Vettius Valens p. 127? has the noun, θηρίων δακετῶν αἰτίαις.
Liddell-Scott-Jones — Greek-English Lexicon
δάκνω (daknō) — to bite. δάκν-ω, [Refs 6th c.BC+]: future δήξομαι [Refs 5th c.BC+]: perfect δέδηχα [Refs 2nd c.AD+]aorist 1 ἔδηξα late, [Refs 2nd c.AD+]: aorist 2 (the only tense in [Refs 8th c.BC+], Epic dialect δάκε [Refs 8th c.BC+]: Epic dialect infinitive δακέειν [Refs 8th c.BC+]: —passive, δάκνομαι [Refs 6th c.BC+]: future δηχθήσομαι [Refs 5th c.BC+]: aorist ἐδήχθην [Refs 5th c.BC+]: perfect δέδηγμαι [Refs 5th c.BC+]; Doric dialect δεδαγμένος [Refs 5th c.BC+] codices:—bite, of dogs, δακέειν μὲν ἀπετρωπῶντο λεόντων [Refs 8th c.BC+]; of a gnat, ἰσχανάᾳ δακέειν [Refs]; στόμιον δ. champ the bit, [Refs 4th c.BC+]; χεῖλος ὀδοῦσι δακών, as a mark of stern determination, Tyrt.[same place]: absolutely, δακὼν ἀνάσχου [Refs 4th c.BC+]; δ. στόμα bite one's tongue, so as to refrain from speaking, πρὸ τῶν τοιούτων χρὴ λόγων δ. στόμα [Refs 5th c.BC+]; δ. ἑαυτόν to bite one's lips for fear of laughing, [Refs 5th c.BC+]; so (by a joke παρὰ προσδοκίαν) δ. θυμόν [Refs 3rd c.BC+]
II. metaphorically of pungent smoke and dust, sting, [Refs 5th c.BC+]; δ. ὄμματα, of dry winds, [Refs 5th c.BC+]
III. of the mind, bite, sting, δάκε δὲ φρένας Ἕκτορι μῦθος [Refs 8th c.BC+]; λόφοι δὲ κώδωντ᾽ οὐ δάκνουσ᾽ ἄνευ δορός have no sting, [Refs 5th c.BC+]; of love, πάντες οἱ ἐν ὥρᾳ τὸν φιλόπαιδα δάκνουσι [Refs 5th c.BC+]:—frequently in passive, δηχθεῖσα κέντροις.. ἠράσθη [Refs 5th c.BC+] [prev. cited]; of vexation, δάκνομαι ψυχήν [Refs 6th c.BC+]; συμφορᾷ δεδαγμένοι Pi.[same place]; δέδηγμαι καρδίαν [Refs 5th c.BC+]; πρός τι, ἐπί τινι, at a thing, [Refs 5th c.BC+]: c.participle, ἐδήχθη ἀκούσας [Refs 5th c.BC+]. (Cf.Sanskritdáśati 'bite', Gothic tahjan 'tear'.)