Usage: 2 forms in 10 verses
Form Translated As     In Verse(s)
τειχήρεσιν walled LXX.Num.13.19LXX.2Chr.33.14
τειχήρεισ walled LXX.Deut.9.1LXX.Josh.19.35LXX.1Kgs.4.13LXX.2Chr.11.5LXX.2Chr.11.10LXX.2Chr.14.6LXX.2Chr.32.1LXX.Jer.4.5

Liddell-Scott-Jones

τειχήρης (teichērēs) walled G:A

τειχήρης-ήρης, ες,

within walls, enclosed by walls: hence,

__1 beleaguered, besieged, τειχήρηςήρεας ποιῆσαί τινας [Refs 5th c.BC+]
__2 walled, fortified, [LXX+1st c.BC+]; τ. τὴν φύσιν firm by nature, [Refs 2nd c.AD+]
__3 τ. στέφανος, = corona vallaris, [Refs 2nd c.AD+]

LSJ Scripture Refs: LXX.Num.13.20*LXX.Deut.9.1