Septenary
Septenary , adjective
[Latin septenairus, from septeni seven each, septem seven: compare French septénaire. See Seven. ]
1.
Consisting of, or relating to, seven; as, a septenary number. — I. Watts
2.
Lasting seven years; continuing seven years.
Septenary penance.
Septenary , noun
The number seven. [Rare] — Holinshed