Usage: 3 forms in 15 verses
Form Translated As     In Verse(s)
χώματοσ embankment LXX.Job.14.19 • LXX.Job.17.16 • LXX.Job.20.11
χώματι an embankment LXX.Job.22.24 • LXX.Dan.12.2
embankments LXX.Exod.8.17
χώμα an embankment LXX.Job.28.6 • LXX.Ezek.21.22 • LXX.Hab.1.10
embankment LXX.Exod.8.16 • LXX.Exod.8.17 • LXX.Neh.4.2
embankments LXX.Isa.25.2
for an embankment LXX.Josh.8.28
their embankment LXX.Isa.34.7

Liddell-Scott-Jones

χῶμα (chōma) an embankment G:N-N

χῶμα, ατος, τό,

(χόω, χώννυμι) earth thrown up, bank, mound, thrown up against the walls of cities to take them, αἵρεε τὰς πόλιας χώμασι [LXX+5th c.BC+]

__2 dyke to hinder a river from overflowing, [Refs 5th c.BC+]; βασιλικὸν χ. Wilcken [Refs 2nd c.BC+]; δημόσιον χ. [Refs 1st c.AD+]
__3 dam, [Refs 5th c.BC+]
__4 mole or pier, carried out into the sea, jetty, [Refs 4th c.BC+]
__5 promontory, spit of sand, [Refs 4th c.BC+]
__II sepulchral mound, [χῶμα μὴ χοῦν ὑψηλότερον πέντε ἀνδρῶν ἔργον 5th-6th c.BC: Plato Philosophus “Leges” 958e. ">Refs 5th c.BC+]
__III mass of soil in which roots are found, conjecture in [Refs 4th c.BC+]
__IV heap of rubbish, ruin, [LXX+4th c.AD+]
__V τὸ χ. τῆς γῆς the dust of the earth, [LXX]

LSJ Scripture Refs: LXX.Ezek.21.22* ☩ LXX.Hab.1.10 ☩ LXX.Josh.8.28 ☩ LXX.Isa.25.2 ☩ LXX.Exod.8.16