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a·nach·ro·nism (ə-năkrə-nĭzəm)
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n.
1. The representation of someone as existing or something as happening in other than chronological, proper, or historical order.
2. One that is out of its proper or chronological order, especially a person or practice that belongs to an earlier time: "A new age had plainly dawned, an age that made the institution of a segregated picnic seem an anachronism" (Henry Louis Gates, Jr.)

[French anachronisme, from New Latin anachronismus, from Late Greek anakhronismos, from anakhronizesthai, to be an anachronism : Greek ana-, ana- + Greek khronizein, to take time (from khronos, time).]

a·nachro·nistic, a·nachro·nous (-nəs) adj.
a·nachro·nisti·cal·ly, a·nachro·nous·ly adv.

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
 

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.