noun, plural lus·trums, lus·tra [luhs-truh] /ˈlʌs trə/.
Origin of lustrum
Examples from the Web for lustra
Historical Examples of lustra
"Cathay" and "Lustra" were followed by the translations of Noh plays.
Certain of the poems in "Lustra" have offended admirers of the verse of the "Personae" period.
Thus passed away two lustra of her life, and as yet my daughter remained nameless upon the earth.The Works of Edgar Allan Poe
Edgar Allan Poe
noun plural -trums or -tra (-trə)
Word Origin for lustrum
(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."