Usage: 3 forms in 5 verses
Form Translated As     In Verse(s)
φρύαγμα neighing LXX.Ezek.7.24LXX.Ezek.24.21LXX.Zech.11.3
φρυάγματοσ their neighing LXX.Hos.4.18
φρυάγματι neighing LXX.Jer.12.5

Liddell-Scott-Jones

φρύαγμα (phruagma) neighing G:N-N

φρύαγμα-αγμα [], ατος, τό,

violent snorting, especially neighing or whinnying of a spirited horse (={ τῶν ἵππων καὶ ἡμιόνων διὰ μυκτήρων ἠχή}, [Refs 5th c.BC+]; also of a boar, [Refs 3rd c.AD+]

__II metaphorically, wanton behaviour, insolence, [φρύαγμασι φ. “Anthologia Graeca” 12.101 (1st c.BC: Meleager Epigrammaticus)">Refs 1st c.BC+]; σοβαρὸν φ.[Refs 2nd c.AD+]