Bauer-Arndt-Gingrich-Danker Greek lexicon -
γέεννα
gevenna, h", hJ Gehenna, Grecized fr. µr,NÏhi ( a ) yG« (Josh 15:8 b; 18:16 b; Neh 11:30 ) Targum µn:hiygI ( cf. Dalman, Gramm. 2 183), really µr,NÏhiA÷b, ( a ) yG« (Josh 15:8 a; 18:16 a; 2 Ch 28:3 ; Jer 7:32 ; cf. 2 Kings 23:10 , where the Kthibh has the pl. : sons of H.) Valley of the Sons of Hinnom , a ravine south of Jerusalem.
There, acc. to later Jewish popular belief, the Last Judgment was to take place. In the gospels it is the place of punishment in the next life, hell: krivsi" th`"
g. condemnation to G. Mt 23:33 . bavllesqai (eij") (th;n) g. ( cf. Sib. Or. 2, 291) 5:29 ; 18:9 ; Mk 9:45 , 47 ; ejmbalei`n eij" th;n g. Lk 12:5 ; ajpelqei`n eij" (th;n) g. Mt 5:30 ; Mk 9:43 ; ajpolevsai ejn g. Mt 10:28 ; uiJo;" g. a son of hell 23:15 (Semitism, cf. uiJo;" 1cd; Bab. Rosh ha-Shana 17b µnhyg ynb . Cf. the oracle Hdt. 6, 86, 3: the perjurer is }Orkou pavi>"). e[nocon ei\nai eij" th;n g. ( sc. blhqh`nai ) 5:22 . As
a place of fire g. (tou`) purov" ( PGM 4, 3072 gevnna purov" ; Sib. Or. 1, 103)
hell of fire Mt 5:22 ; 18:9 ; 2 Cl 5:4. Fig. flogizomevnh uJpo; th`"
g. set on fire by hell Js 3:6 .GDalman, RE VI 418 ff ; PVolz, Eschatol. d. jüd. Gem.34, 327 ff ; GBeer, D. bibl. Hades: HHoltzmannFestschr, 02, 1-29; Billerb. IV 28, 1029-1118. M-M. B.
1485.*
http://lareopage.free.fr/a&g/ga/ga-Index.html
הִנֹּם S2011 GK2183 n.pr.m. (deriv. & meaning dub.; according to Sim Bö Gf al. = wailing, Arabic هَنَّ (hanna), from cries of children (v. infr.), but this improbable)only in גֵּי(גֵּיא

בֶן־ה׳, & abbrev. ג׳ ה׳, n.pr.loc. of valley S. of Jerusalem, (G φάραγγα Ὀνομ Jos 15:8(×2) Σονναμ 18:16; Γαιεννα v 16; Γαιβενθομ 2 Ch 28:3, GL φάρ. Βενεννομ; γὲ βανὲ Ἑννομ 33:6, GL γῇ Βενεννομ; elsewhere usually φάρ. (υἱοῦ

Ἑννομ

cf. sub גַּיְא;as mere topographical term גֵּי בֶן־הִנֹּם, boundary between Judah & Benjamin Jos 15:8; 18:16; also גֵּי ה׳ 15:8; 18:16 (all P) cf. Ne 11:30; elsewhere always גּ׳ בֶן־ה׳ (2 K 23:10 Kt has גי בני הנם, Qr & G B sing.), & always with ref. to the sacrifice of children by fire, 2 K 23:10 2 Ch 28:3; 33:6 Je 7:31, 32; 19:2, 6; 32:35;
on account of this inhuman & idolatrous practice it was abhorred by priest & prophet, & defiled by Josiah; this conception afterward developed, through Is 66:24, into Jewish Gehinnom (cf. WeberSynagog. Theol. 326 ff. DiBuch Henoch. 131 f.) & NT γέεννα. On locality cf. RobBR ii. 273 f. ToblerTopogr. ii 39 ff. BdPal. 103; mod. name (of lower half of valley, toward SE.) Wady er-Rabâbi.
Brown, Francis ; Driver, Samuel Rolles ; Briggs, Charles Augustus: Enhanced
Brown-Driver-Briggs Hebrew and English Lexicon. electronic ed. Oak Harbor, WA : Logos Research Systems, 2000, S. 244