Quick Definition
a foundation, stay, support
Strong's Definition
a support, i.e. (figuratively) basis
Derivation: from a derivative of G1476 (ἑδραῖος);
KJV Usage: ground
Thayer's Greek Lexicon
ἑδραίωμα, ἑδραιωματος, τό (ἑδραιόω, to make stable, settle firmly), a stay, prop, support, (Vulg.firmamentum): 1Ti_3:15 (A. V. ground). (Ecclesiastical writings.)
Mounce Concise Greek Dictionary
ἑδραίωμα hedraiōma 1x
a basis, foundation, 1Ti_3:15
Abbott-Smith Greek Lexicon
*† ἑδραίωμα , -τος , τό
( < ἑδραῖος ),
a support, bulwark, stay ( Vg . fermamentum ): 1Ti_3:15 ( eccl .).†
Moulton & Milligan — Vocabulary of the Greek NT
ἑδραίωμα [page 180]
For this word, which is found in the NT only in 1Ti_3:15 , Hort ( Christian Ecclesia , p. 174) strongly advocates the translation stay or bulwark, in accordance with the almost universal Latin rendering firmamentum. Cf. the use of ἕδρασμα in Reitzenstein Poimandres , p. 343 .4 ὁ βαθμὸς οὗτος , ὦ τέκνον , δικαιοσύνης ἐστὶν ἕδρασμα .
Liddell-Scott — Intermediate Greek Lexicon
ἑδραίωμα [Etym: from ἑδραῖος] ἑδραίωμα, ατος, τό, "a foundation, base", NTest.
STEPBible — Tyndale Abridged Greek Lexicon
ἑδραίωμα, -τος, τό
(ἑδραῖος),
a support, bulwark, stay (Vg. fermamentum): 1Ti.3:15 (eccl.).†
(AS)