\Sep"ten*a*ry\, a. [L. septenairus, from septeni seven
each, septem seven: cf. F. sept['e]naire. See {Seven}. ]
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\, n.
The number seven. [R.] --Holinshed.