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