Usage: 3 forms in 10 verses
Form Translated As     In Verse(s)
προτειχίσματοσ area around the wall LXX.Song.2.14 • LXX.Jer.52.7 • LXX.Ezek.42.20
around the wall LXX.Jer.39.4
προτειχίσματι area around the wall LXX.2Sam.20.15 • LXX.1Kgs.21.23
προτείχισμα an area around the wall LXX.Ezek.48.15
area around the wall LXX.Lam.2.8 • LXX.Ezek.40.5
wall around LXX.2Chr.32.5

Liddell-Scott-Jones

προτείχισμα (proteichisma) area around a wall G:N-N

προτείχισμα-ισμα, ατος, τό,

advanced fortification, outwork, [LXX+5th c.BC+]

LSJ Scripture Refs: LXX.2Kgs.20.15*