Quick Definition
ἐκτινάσσω v. I shake off
Strong's Definition
from 1537 and tinasso (to swing); to shake violently
KJV Usage: shake (off)
UBS Dictionary of the Greek New Testament
verb | τινάσσω (shake [something])
16.8 · Non-Linear Movement
to shake off, to shake out, to shake from to shake something out or off, in order to get rid of an object or a substance In a number of languages quite different terms for shaking will be required for the contexts of ACT 28:5 and LUK 9:5, since in the first instance it is an animate being which clings, and in the second instance it is simply a substance that adheres.
In a number of languages, however, the symbolic meaning of ‘shaking dust off one’s feet’ is not at all clear, so that it may be necessary to add a type of classifier to indicate that such an action symbolizes the breaking off of association. It is for this reason that the expression ἐκτιναξάμενος τὰ ἱμάτια in ACT 18:6 is often translated as ‘he protested by shaking the dust from his clothes.’
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
ἐκ-τινάσσω: 1 aor. impv. ἐκτινάξατε ; 1 aor. mid. ptep. ἐκτιναξάμενος ; 10 shake off, so that something adhering shall fall: τὸν χοῦν, Mk. vi. 11; τὸν κονιορτόν, Mt. x. 14 (where the gen. τῶν ποδῶν does not depend on the verb but on the subst. [L T WH mrg., however, insert ék]}) ; by this symbolic act a person expresses extreme contempt for another and refuses to have any further intercourse with him [B. D. Am. ed. s. v. Dust] ; Mid. to shake off for (the cleansing of) one’s self: τ. κονιορτὸν... Twa, against one, Acts xiii. 51; τὰ ἱμάτια, dust from garments, Acts xviii. 6; [ef. B. D. u.s.; Neh. v.13]. (/o knock out, rods ὀδόντας. Hom. Il. 16, 348; Plut. Cat. maj. 14.)
Mounce Concise Greek Dictionary
ἐκτινάσσω ektinassō 4x
to shake out, shake off, Mt. 10:14; Mk. 6:11; Acts 13:51; 18:6*
Abbott-Smith Greek Lexicon
ἐκ-τινάσσω
[in LXX for נָעַר ni., pi., etc. ;]
to shake off: κονιορτόν, Mt 10:14; χοῦν, Mk 6:11. Mid.: κονιορτόν, Ac 13:51; ἱμάτια, Ac 18:6 (cf. MM, Exp., iii).†
Moulton & Milligan — Vocabulary of the Greek NT
ἐκτινάσσω. In BGU IIL. 827"? we have ἔπεχε τῇ οἰκίᾳ μου, ἐκτίνασσε τὰ ἔρια kal τὰ ipnd[t}ia, apparently as part of a ‘‘ spring cleaning "’: cf. P Fay 117?! (A.D. 108) ἐκτίναξον τὸ διειρον elva ἀμέριμνος ἧς. The verb is used of ‘‘ making an upturn ”’ in connexion with a domiciliary visit to the Serapeum, P Par 3511 (B.C. 163) τῶν τε φυλακιτῶν ἐκτε[νῶς] ἐκτιναξάν[τω]ν καὶ μηθὲν ἄτοπον πίαραλαβόντων : so 10. 3712. A weaker sense appears in P Lond 1170 verso® (A.D. 258-9) (= III. Ρ- 193) ἐκτινάσσοντες ἐπὶ μὲν τῷ ἐλαιῶνι, so 11 and cf. Preisigke 4369 0391. (iii/B.c.). For the subst. see P Fay 114%? (A.D. 100) μὴ ὃν (1. οὖν) ληρήσῃς τὸν ἐκτιναγμόν σου, “don’t talk nonsense about your threshing’ (Edd.). It is used metaphorically in Nahum 2" ἐκτιναγμὸς kal ἀνατιναγμός, kal ἐκβραγμὸς kal καρδίας θραυσμός.
Liddell-Scott-Jones — Greek-English Lexicon
ἐκτινάσσω (ektinassō) — to shake out/off. ἐκτῐν-άσσω, shake out, in cleaning, ἔρια, ἱμάτια, [Refs]; expel, ἕλμινθας [Refs 3rd c.BC+] —passive, ἐκ δ᾽ ἐτίναχθεν ὀδόντες [Refs 8th c.BC+]; [ὁ Φαέθων] ἐκτινάσσεται is thrown out, [Refs 4th c.AD+]
2. shake off, τὸν κονιορτὸν τῶν ποδῶν [NT]:—middle, [NT]
3. search thoroughly, τοὺς βαδίζοντας [Refs 4th c.BC+]
II. intransitive, make a disturbance, [Refs 5th c.BC+]; make a thorough search, [Refs 2nd c.BC+]; kick out, of animals, εἰς τοὺς πλησίον ἵππους [Refs 2nd c.AD+]