The same as qayin (with a play upon the affinity to qanah); Kajin, the name of the first child, also of a place in Palestine, and of an Oriental tribe -- Cain, Kenite(-s).
see HEBREW qayin
see HEBREW qanah
H7014. Qayin
II. קַ֫יִן proper name
1. of a people (see StaG i. 151 f. MeyEntstehung 115; compare Arabic proper name, of family Nabataean, Sinaitic proper name, masculine and feminine קינו; tribe of smiths?); — tribe of Mose's father-in-law Judges 4:11 (compare קֵינִי 1:16), Καινα ᵐ5L Κειν; akin to Midian (Numbers 10:29 P), settled among Amalekites in south of Canaan (see קֵינִי); prophesied against by Balaam 24:22 (קָ֑יִן; J E); — see also קֵינִי
2. location הַקַּ֫יִן in southern Judah (a settlement of II.׳ק
1 ?); — Joshua 15:57, [Ζακαν]αειμ, A [Ζανω] Ακειμ, ᵐ5L [Ζανου] Ακεν; possibly= Yª†în southeast from Hebron [RobBR ii.85] (see BuhlGeogr. 162 f. who, however, compare קִינָה 15:22).
III. קַ֫יִן proper name, masculine Cain, Kain eldest son of Adam and Eve (explanation Genesis 4:1 from קָנָה acquire; but in fact = II. ׳ק, as heros eponymos, according to Wecompare11 StaG 285 ff. BuUrg. 193 HolzGenesis 50f. especially StaZAW xiv (1894), 250 ff.; xv (1895), 157 ff., CheEncy.Bib.CAIN); — ׳ק 4:1-2, 3, 5 (twice in verse); 4:8 (twice in verse); 4:9, 13, 15 (twice in verse); 4:16-17, קָ֑יִן 4:6; 4:24; 4:25 (all J).