Usage: 4 forms in 10 verses
Form Translated As     In Verse(s)
ανανεύων in shaking LXX.Exod.22.17
in shaking his head in dissent LXX.Num.30.5 • LXX.Num.30.8
ανανεύση he shakes his head in dissent LXX.Exod.22.17
shake his head in dissent LXX.Num.30.11
should dissent LXX.Num.30.5 • LXX.Num.30.8
ανένευσεν shook his head in dissent LXX.Num.30.5 • LXX.Num.30.8
ανένευσαν they shook their heads in dissent LXX.Neh.9.17

Liddell-Scott-Jones

ἀνανεύω (ananeuō) to disagree G:V

ἀνανεύω-νεύω,

future -νεύσομαι[Refs 5th c.BC+] -νεύσω [Refs 2nd c.AD+]aorist ἀνένευσα, etc.:—throw the head back in token of denial, make signs of refusal, opposed to κατανεύω, ἐπινεύω, ὡς ἔφατ᾽ εὐχομένη, ἀνένευε δὲ Παλλὰς Ἀθήνη[Refs 8th c.BC+]

__2 with accusative of things, deny, refuse, ἕτερον μὲν ἔδωκε πατήρ, ἕτερον δ᾽ ἀνένευσε[Refs 8th c.BC+]: with future infinitive, σόον δ᾽ ἀνένευσε μάχης ἒξ ἀπονέεσθαι[Refs]:—passive, ἀνανεύωνενευμένη rejected, [Refs 1st c.AD+]
__3 later, with genitive of things, look up from, [Refs 4th c.AD+]; go back from, ἀπὸ τοῦ ψεύδους[Refs 2nd c.AD+]
__II generally, throw the head up: hence ἀνανεύωνενευκώς upright, [τὰς σαρίσας] ἀ. φέρουσι[Refs 2nd c.BC+]. Astron., tilt back, of the pole, opposed to κατανεύω, [Refs 4th c.BC+]