E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
A Chinese word, signifying age or period, generally applied to the ten periods preceding the first Imperial dynasty, founded B.C. 2205. It extended over some 300,000 years. The first was founded by Puon-ku (highest eternity), and the last by Fo-hi, surnamed Tien-Tse (son of heaven).