sab·bat·i·cal (sə-bătĭ-kəl) also sab·bat·ic (-ĭk)
1. Relating to a sabbatical year.
2. Sabbatical also Sabbatic Relating or appropriate to the Sabbath as the day of rest.
A sabbatical year.
[From Late Latin sabbaticus, from Greek sabbatikos, from sabbaton, Sabbath; see SABBATH.]
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.