au·thor·i·tar·i·an (ə-thôr′ĭ-târē-ən, ə-thŏr′-, ô-)
1. Characterized by or favoring absolute obedience to authority, as against individual freedom: an authoritarian regime.
2. Tending to tell other people what to do in a peremptory or arrogant manner. See Synonyms at dictatorial.
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:
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.