[kwot-er-sen-ten-uh-ree, -sen-tn-er-ee; especially British kwot-er-sen-tee-nuh-ree]
- a 400th aniversary or its celebration.
- pertaining to or marking a period of 400 years; quatercentennial.
Origin of quatercentenary
1880–85; < Latin quater four times + centenary
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a 400th anniversary or the year or celebration marking it
C19: from Latin quater four times + centenary