D defs.my
Entry 3 senses Webster, 1913

Patriarch

/(pā"trĭ*ärk)/ · Pa·tri·arch · IPA /ˈpeɪtɹiɑɹk/
01 n. The father and ruler of a family; one who governs his family or descendants by paternal right; -- usually applied to heads of families in a…
  1. 1.
    The father and ruler of a family; one who governs his family or descendants by paternal right; -- usually applied to heads of families in ancient history, especially in Biblical and Jewish history to those who lived before the time of Moses.
  2. 2.
    A dignitary superior to the order of archbishops; as, the patriarch of Constantinople, of Alexandria, or of Antioch.(R. C. Ch. & Gr. Ch.)
  3. 3.
    A venerable old man; an elder. Also used figuratively.
    “The patriarch hoary, the sage of his kith and the hamlet.” Longfellow.
    “The monarch oak, the partiarch of trees.” — Dryde.