al·pha·bet·i·cal (ăl′fə-bĕtĭ-kəl) also al·pha·bet·ic (-bĕtĭk)
1. Arranged in the customary order of the letters of a language.
2. Of, relating to, or expressed by an alphabet.
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.