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quad·ri·cen·ten·a·ry

(kwŏd′rĭ-sĕn-tĕnə-rē, -sĕntə-nĕr′ē)

n. pl. quad·ri·cen·ten·a·ries

A 400th anniversary or celebration.

adj.

Of or relating to a span of 400 years or to a 400th anniversary.

[From alteration of Latin quadringentī, quadrigentī, four hundred (on the model of such words as TERCENTENARY); see k^wetwer- in the Appendix of Indo-European roots.]

Indo-European & Semitic Roots Appendices

Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:

Indo-European Roots

Semitic Roots

The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.

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