Usage: 2 forms in 2 verses
Form Translated As     In Verse(s)
ριζώματα root LXX.Job.36.30
ρίζωμά your root LXX.Ps.52.5

Liddell-Scott-Jones

ῥίζωμα (rhizōma) a root G:N-N

ῥίζωμα-ωμα, ατος, τό,

the mass of roots of a tree, [Refs 4th c.BC+]

__II element, τέσσαρα μὲν πάντων ῥιζώματα πρῶτον ἄκουε [Refs 5th c.BC+]; ἀενάου φύσεως . [Refs 4th c.BC+]
__II.2 stem, race, [Refs 4th c.BC+]; θείων δ᾽ ἀπ᾽ ἀμφοῖν ἔκγονον ῥιζωμάτων, i.e. on the side of both parents, [Refs 4th c.BC+]