Lexical Definition

‎ἐπινεύω‎ epineúō (ep-een-yoo'-o) to accept G:V
from ‎ἐπί‎ and ‎νεύω‎

consent.

Usage: 2 forms in 2 verses
Form Translated As     In Verse(s)
ἐπένευσεν he did consent Acts.18.20
επινεύει assents to LXX.Prov.26.24

Abbott-Smith

ἐπι-νεύω [in LXX: Pr 26:24 (נָכַר ni.), I Mac 6:57, II Mac 4:10 11:15 14:20 * ;]
to nod in command or approval, to nod approval, consent: Ac 18:20.†

Abbott-Smith References

Book Refs
Proverbs 26:24
Acts 18:20

Liddell-Scott-Jones

ἐπινεύω-νεύω,

future -νεύσω 2nd c.AD: Lucianus Sophista “Sat.” 4, -νεύσομαι 5th c.AD: Aristaenetus Rhetor 2.1:—nod to, in token of command or approval, nod assent, opposed to ἀνανεύω, ἐμῷ δ᾽ ἐπένευσα κάρητι 8th c.BC: Ilias Homerus Epicus “Illiad” 15.75; ἐπ᾽ ὀφρύσι νεῦσε Κρονίων 1.528, etc.; ἐπὶ γλεφάροις νεῦσαν 5th c.BC: Pindarus Lyricus “I.” 8(7).49; σὺ.. ἐπένευσας τάδε did'st approve, sanction these acts, [Refs]; ἐπένευσεν ἀληθὲς εἶναι he nodded in sign that it was true,[Refs]; σιγῇ δὲ τὰ ψευδῆ.. ἐπινεύωνεύουσι they indicate falsehoods without speaking, [Refs]; Ἑλληνικὸν . give a Greek nod, [Refs]: with accusative, grant or promise, τινά τινι [Refs 5th c.BC+]: with dative person, . τισὶ δεομένοις “SIG” 888.13 [Refs 3rd c.AD+]: with dative person et infinitive, permit, κῴδια . ἡμῖν ἐργάζεσθαι “PPetr.” 2p.108 [Refs 3rd c.BC+]

__2. make a sign to another to do a thing, order him to do, with infinitive, ἐπ᾽ ὀφρύσι νεῦσε σιωπῇ.. στορέσαι λέχος [Refs 8th c.BC+]
__3. nod forwards, κόρυθι ἐπένευε φαεινῇ he nodded with his helmet, i.e.it nodded, [Refs 3rd c.BC+]; πέτραι ἐπινεύωνενευκυῖαι overhanging, [Refs]
__4. incline towards, εἴς τινα 5th-6th c.BC: Aristophanes Comicus “Equites” 657.
__5. roll down an inclined plane, [Refs]
__6. transitive, elevate, point upwards, [LXX]:—passive, to be inclined downwards, opposed to ἐξυπτιάζεσθαι, [Refs]
__6.b. tilt, [κεράμιον] [Refs]
__7. ἐπινεύωνενευκὼς σφυγμός, name coined by Archigenes, [Refs]