i·tin·er·ar·y (ī-tĭnə-rĕr′ē, ĭ-tĭn-)
n. pl. i·tin·er·ar·ies
1. A route or proposed route of a journey.
2. An account or record of a journey.
3. A guidebook for travelers.
1. Of or relating to a journey or route.
2. Traveling from place to place; itinerant.
[Middle English itinerarie, from Late Latin itinerārium, account of a journey, from neuter of itinerārius, of traveling, from Latin iter, itiner-, journey; see ei- in the Appendix of Indo-European roots.]
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.