jack·boot also jack-boot (jăkbt′)
a. A stout military boot with a flared top that extends above the knee.
b. A stout military boot that has an often studded sole, lacks laces, and extends to mid-calf.
2. A person who uses bullying tactics, especially to force compliance.
3. The spirit sustaining and motivating a militaristic, highly aggressive, or totalitarian regime or system.
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:
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