Quadricentennial

Part of speech: noun, adjective

Definitions

1. A 400th anniversary or celebration, often marked by significant events and reflections on the passage of time
2. Characterizing or relating to a period of four centuries, particularly in the context of commemorations
3. Pertaining to historical milestones occurring every four hundred years, highlighting changes and continuities over that extensive duration

Etymology: "Quadricentennial" is a modern compound built from two parts: the Latin prefix "quadri-", meaning "four", and "centennial", which itself comes from Latin "centennis", "lasting a hundred years", from "centum", "hundred", plus the suffix "-ius", giving "centenium" in Late Latin. Put together, the word literally means something like "four-hundred-year" and marks the moment when a four-century span has been completed. Its base, "centennial", followed the same path into English: a Latin adjective of hundred years that was then adapted into English with the adjectival ending "-al", and it has long been used for hundredth anniversaries, especially in American English. Adding "quadri-" to it was a natural extension, producing a term for the next major milestone after the centennial. The word is therefore a straightforward English formation rather than a borrowing, and its history lies in the combination of its parts. Its simplicity makes it a good illustration of how English builds long, precise words from older classical elements.

Synonyms: 400th anniversary