sept Meaning, Definition & Usage

  1. noun the month following August and preceding October
    September; Sep.
  2. noun people descended from a common ancestor
    kinfolk; family; family line; phratry; kinsfolk; folk.
    • his family has lived in Massachusetts since the Mayflower

WordNet

Sept noun
Etymology
A corruption of sect, n.
Definitions
  1. A clan, tribe, or family, proceeding from a common progenitor; -- used especially of the ancient clans in Ireland.
    The chief, struck by the illustration, asked at once to be baptized, and all his sept followed his example. S. Lover.

Webster 1913