Usage: 3 forms in 7 verses
Form Translated As     In Verse(s)
υποστηριγμάτων of supports LXX.1Kgs.7.24
υποστηρίγματα for supports LXX.1Kgs.10.12
her supports LXX.Jer.5.10
supporters LXX.Dan.11.7
supports LXX.1Kgs.7.24LXX.Ezek.30.6
εδρών of their buttocks LXX.1Sam.6.11

Liddell-Scott-Jones

ὑποστήριγμα (hupostērigma) a support G:N-N

ὑποστήριγμα-ιγμα, ατος, τό,

underprop, [LXX+1st c.AD+] underprop, sustain, [LXX+2nd c.AD+]

LSJ Scripture Refs: LXX.Ps.36.17*