Dec"ade (?), n. [F.
décade, L. decas, -adis, fr. Gr. ?, fr.
de`ka ten. See Ten.] A group or division of
ten; esp., a period of ten years; a decennium; as, a decade of
years or days; a decade of soldiers; the second decade
of Livy. [Written also decad.]
During this notable decade of
years.
Gladstone.