Usage: 2 forms in 3 verses
Form Translated As     In Verse(s)
θεμελιώσει groundwork LXX.Ezra.3.11
its groundwork LXX.Ezra.3.12
θεμελίωσισ groundwork LXX.2Chr.24.27

Liddell-Scott-Jones

θεμελίωσις (themeliōsis) groundwork G:N

θεμελίωσις-ωσις, εως, ,

foundation, [LXX]; paving, [Refs]