Abbott-Smith Manual Greek Lexicon
Ἰακώβ (G2384)
27 Ἰακώβ , ὁ , indecl. (Heb. יַעֲקֹב ), Jacob ; The patriarch: Mt 1:2 8:11 , Jo 4:5 , 6 , Ac 7:8 , al,; as in Heb. (cf. Nu 23:7 , Is 41:8 , Si 23:12 , al.), of his descendants, Ro 11:26 (LXX) . The father-in-law of Mary: Mt 1:15 , 16 (on the form as distinct from that of the next word, v. Deiss., BS , 316 1 )
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain