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Adler, Mortimer Jerome 1902-2001.
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American educator and philosopher whose numerous published works include How to Read a Book (1940) and The Conditions of Philosophy (1965).

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 
Ad·ler (ädlər, ăd-), Alfred 1870-1937.
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Austrian psychiatrist who rejected Sigmund Freud's emphasis on sexuality and theorized that neurotic behavior is an overcompensation for feelings of inferiority.

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 
Ad·ler (ădlər, äd-), Felix 1851-1933.
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German-born American educator and reformer who founded the Society for Ethical Culture (1876), an organization dedicated to the teaching of ethical ideals.

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 
Ad·ler (ădlər), Cyrus 1863-1940.
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American religious leader and educator who was president of the Jewish Theological Seminary of America (1924-1940) and edited scholarly works concerning Judaism.

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. 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.

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