1. Conduct or language inciting rebellion against the authority of a state.
2. Archaic Insurrection; rebellion.
[Middle English sedicioun, violent party strife, from Old French sedition, from Latin sēditiō, sēditiōn- : sēd-, sē-, apart; see s(w)e- in the Appendix of Indo-European roots + itiō, act of going (from itus, past participle of īre, to go; see ei- in the Appendix of Indo-European roots).]
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.