septenary

Etymology
From the, from +  (whence the  suffix ).

Adjective

 * 1) Consisting of or containing seven.
 * 2) Of seventh rank or order.
 * 3) Lasting seven years; continuing seven years.
 * 1) Lasting seven years; continuing seven years.

Translations

 * Bulgarian: седми
 * Catalan: septenari, septenària
 * Russian:

Noun

 * 1) A group of seven things.
 * 2) A period of seven years.
 * 3)  The seven notes of the diatonic scale.
 * 1)  The seven notes of the diatonic scale.