Definition of lustrum in English:

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lustrum

Pronunciation: /ˈlʌstrəm/

noun (plural lustra /ˈlʌstrə/ or lustrums)

chiefly literary or historical
A period of five years.
Example sentences
  • The book is dedicated to Nygren's wife Irmgard "in thankfulness for seven lustrums of theological cooperation."
  • 37 years ago my first secretary was a lady who has remained my friend for nearly 8 lustrums (4 decades) and today is a leading lady lawyer in Los Angeles who has never lost a case in court.

Origin

Late 16th century: from Latin, originally denoting a purificatory sacrifice after a quinquennial census.

For editors and proofreaders

Line breaks: lus|trum

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