G3966
πατριάρχης
patriarch
πατριάρχης, -ου, ὁ (πατριά, ἄρχω), [in LXX: 1Ch.24:31 (אָב), 2Ch.19:8 26:12 (אָב רֹאשׁ), 1Ch.27:12 (שַׂר), 2Ch.23:20 (מֵאָה שַׂר), 4Ma.7:19 4Mac 16:25 * ;] a patriarch: Act.2:29 7:8-9, Heb.7:4.† (AS)
The KJV translates G3966 in the following manner:
patriarch (4x), patriarchs (4x), the (2x)
Full Thayer's lexicon entry
πατριάρχης — patriárchēs
πατριάρχης, πατριάρχου, ὁ (πατριά and ἄρχω; see ἑκατοντάρχης), a Hellensitic word (Winers Grammar, 26), a patriarch, founder of a tribe, progenitor: used of David, Act 2:29; of the twelve sons of Jacob, founders of the several tribes of Israel, Act 7:8 f; of Abraham, Heb 7:4; of the same and Isaac and Jacob, 4Ma 7:19; 4Ma 16:25; used for הָאָבות רֹאשׁ, 1Ch 24:31 (but the text here is uncertain); for שְׁבָטִים שַׂר, 1Ch 27:22; for הַמֵּאות שַׂר, 2Ch 23:20.
4 occurrences
Acts (3), Hebrews (1)