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lustrum

英 ['l?str?m] 美
  • n. 五年時間；人口普查

詞態(tài)變化

復(fù)數(shù):?lustrums;? lustra;

英文詞源

lustrum (n.)
(plural lustra), "purification of the Roman people every five years," 1580s, from Latin lustrum, perhaps from root of luere "to wash," related to lavere (see lave). Or [Watkins, Klein] from PIE *leuk-stro-, from base *leuk- "light, brightness."