[kwin-sen-ten-uh-ree, kwin-sen-tn-er-ee; especially British kwin-sen-tee-nuh-ree]
  1. pertaining to or marking a period of 500 years; quincentennial.

Origin of quincentenary

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British Dictionary definitions for quincentenary


noun plural -naries
  1. a 500th anniversary or the year or celebration marking it
Derived Formsquincentennial (ˌkwɪnsɛnˈtɛnɪəl), adjective, noun

Word Origin for quincentenary

C19: irregularly from Latin quinque five + centenary
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012