decade
பத்து, பத்தான தொகுதி, பதிகம், பத்தாண்டு.
Dec"ade, n. Etym: [F. décade, L. decas, -adis, fr. Gr. Ten.] Defn: 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.