The following is everywhere in the Greek Septuagint that Strong's G1787 is used. I am quoting from the CLV because my Septuagint with these Greek numbers is in Adobe Reader format, and I can't copy them. The Psalms are always one chapter after the Hebrew. For instance; Psalm 39 in the KJV is actually Psalm 38 in the Septuagint.
Job 2:8 So he took for himself a potsherd to scrape himself with it as he was sitting in the midst[Stongs 1787, entos] of ashes.
Psa 39:3 My heart kindled warm within[Stongs 1787, entos] me; A fire consumed in my soliloquy; I spoke with my tongue:
Psa 103:1 Davidic Bless Yahweh, O my soul, And all within[Stongs 1787, entos] me, bless His holy Name!"
Psa 109:22 For humbled and needy am I, And my heart, it is wounded within[Stongs 1787, entos] me."
Son 3:10 Its columns he made of silver, Its bolster of gold, Its riding seat of purple, Its interior[Stongs 1787, entos] inlaid with love By the daughters of Jerusalem."
Isa 16:11 Therefore my bowels are clamoring as a harp for Moab, and my inwards[Stongs 1787, entos] as a new lyre for the side wall."
Dan 10:16 And behold, one as the likeness of the sons of humanity is touching my lips. I am opening my mouth to speak and am saying to him who is standing in front of me, "My lord, by the sight of thee my throes[Stongs 1787, entos] are turned on me, and no vigor do I retain."
In the verse above in Daniel, the Greek reads like this; ...apparition of you turned within[G1787] my, in me, and I did not have Strength.
Then we have the only two verses that are used in the New Testament:
Mat 23:26 Blind Pharisee! Cleanse first the inside[Stongs 1787, entos] of the cup and the plate, that their outside also may be becoming clean!"
Luk 17:21 Neither shall they be declaring 'Lo! here!' or 'Lo! there!' for lo! the kingdom of God is inside[Stongs 1787, entos] of you."
Conclusion: The only verse in the Septuagint that could be maybe translated among would be Psalm 103:1; ...all among me, praise the Lord!
I must research this more, as to what the exact Hebrew equivalent to the Greek is, if there even is one.
God bless,
Jason