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co·e·ta·ne·ous

(kō′ĭ-tānē-əs)

adj.

Of equal age, duration, or period; coeval.

[From Late Latin coaetāneus, a contemporary : Latin co-, co- + Latin aetās, age; see aiw- in the Appendix of Indo-European roots.]

co′e·tane·ous·ly adv.

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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