θεμέλιος, -ον

(τίθημι), [in LXX for אַרְמוֹן, מוֹסָד, etc. ;]

of or for a foundation; as subst. ὁ θ. (sc. λίθος), a foundation stone, foundation: Luk.6:48-49 14:29 (but see Deiss. BS, 123); pl. οἰ θ. (cl.), Heb.11:10 Rev.21:14, 19; neut. τὸ θ. (Arist. Phys. vi, 6, 10, LXX and later writers), Act.16:26; metaphorically, Rom.15:20, 1Co.3:10-12 Eph.2:20, 1Ti.6:19, 2Ti.2:19, Heb.6:1.†

(AS)

of; for a foundation; a foundation stone; foundation