QUINGENTENARY

PRONUNCIATION: (kwin-jen-TEN-uh-ree)

MEANING: noun: A 500th anniversary. (Also known as a quincentenary)

ETYMOLOGY: From Latin quingenti (five hundred), from quinque (five) + centum (hundred). Earliest documented use: 1884.
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QUINCENTENARY - worth a nickel (formerly "duocentenary" (as in "Put your two cents in") but what with inflation and all...)

RUINGENTENARY - causing the downfall of an otherwise fine fellow

QUINRENTENARY - increasing the monthly payment by a factor of five after the property emerges from the Rent Control laws