octocentenary

[ ok-toh-sen-ten-uh-ree, -sen-tn-er-eeor, especially British, -sen-tee-nuh-ree ]

adjective

1. pertaining to 800 or a period of 800 years; marking the completion of 800 years.

noun

, plural oc·to·cen·ten·ar·ies.

1. an 800th anniversary or its celebration.

octocentenary

/ ˌɒktəʊsɛnˈtiːnərɪ /

noun

1. an eight-hundredth anniversary

Word History and Origins

Origin of octocentenary¹

First recorded in 1885–90; octo- + centenary