Lustrum was a sacrifice for expiation and purification offered by one of the censors of Rome in name of the Roman people at the close of the taking of the census, and which took place after a period of five years, so that the name came to denote a period of that length. The word also signifies a period of five years. Quotation: "Thus I turned over the last ten years in my mind, and then, fixing my anxious gaze on the future, I asked myself, 'If, perchance, thou shoulds't prolong this uncertain life of thine for yet two more lustres ... coulds't thou ... face death ... hopefully...?'" -- Francis Petrarch, "Letter to Dionisio da San Sepolcro [The Ascent of Mount Ventoux]" ca. 1336. Trans. J.H Robinson/H.W. Rolfe.
See also
This article incorporates text from the public domain 1907 edition of The Nuttall Encyclopædia.
