cat·e·gor·i·cal (kăt′ĭ-gôrĭ-kəl, -gŏr-) also cat·e·gor·ic (-ĭk)
1. Being without exception or qualification; absolute: a categorical refusal.
a. Of or relating to a category or categories.
b. According to or using categories: a categorical arrangement of specimens.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. 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.