From the imperative of ra'ah and ben; see ye a son; Reuben, a son of Jacob -- Reuben.
see HEBREW ra'ah
see HEBREW ben
H7205. Reuben
רְאוּבֵן71 proper name, masculine Reuben, Ρουβην[ιν] (be-hold a son! but Genesis 29:32 makes = בְּעָנְיִי רָאָה (!); JosAnt. i. 19, 7 and others Ρουβηλος, ᵑ6 , ׳ר then perhaps = Arabic , lion, compare Di); —
1 eldest son of Jacob and Leah Genesis 29:32; 30:14 11t. Genesis; Exodus 1:2; 1 Chronicles 2:1; as head of family or clan Exodus 6:14 (twice in verse); Numbers 1:20; 26:5 (all P), 1 Chronicles 5:1, 3, compare בֶּןרְֿא אֱלִיאָב ׳בְּנֵי Deuteronomy 11:6.
2 as name of clan or tribe Judges 5:15-16, Deuteronomy 27:13; Joshua 18:7 ( +גָּד; both D), Deuteronomy 33:6 (poem), Ezekiel 48:6-7, 31; Numbers 1:5 (P); so ר ׳מַטֵּה 1:21; 13:4; Joshua 20:8; 21:7 (all P), 1 Chronicles 6:48; 6:63, ר ׳מַחֲנֵה Numbers 2:10, 16; 10:18 (all P); ר ׳בְּנֵי, as tribe, Numbers 16:l b 32:37 (both J E), 2:10; 7:20; 26:5; Joshua 13:23 (twice in verse) (all P), also (+ Gad and often Manasseh) Numbers 32:1-2, 6, 25 (JE), Joshua 4:12 (D), Numbers 32:29, 31, 33; Joshua 22:9 11t. 22 (all P), compare 1 Chronicles 5:18; ׳בֶּןרֿ as tribe Joshua 15:6; 18:7 (both P), ר ׳בְנֵיֿ מַטֵּה 13:15 (P).