Zeit·geist also zeit·geist (tsītgīst′, zīt-)
The spirit of the time; the taste and outlook characteristic of a period or generation: "A new cult of technological optimism has deeply embedded itself in the zeitgeist" (Sebastian Seung).
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 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.