septenary Meaning, Definition & Usage

  1. noun the cardinal number that is the sum of six and one
    seven; heptad; sevener; VII; septet; 7.

WordNet

Sep"ten*a*ry adjective
Etymology
L. septenairus, from septeni seven each, septem seven: cf. F. septénaire. See Seven.
Definitions
  1. Consisting of, or relating to, seven; as, a septenary number. I. Watts.
  2. Lasting seven years; continuing seven years. "Septenary penance." Fuller.
Sep"ten*a*ry noun
Definitions
  1. The number seven. R. Holinshed.

Webster 1913