olympiad

O*lym"pi*ad, n. Etym: [L. olympias, -adis, Gr. olympiade.] (Greek Antig.) Defn: A period of four years, by which the ancient Greeks reckoned time, being the interval from one celebration of the Olympic games to another, beginning with the victory of Coroebus in the foot race, which took place in the year 776 b.c.; as, the era of the olympiads.

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