a·li·as (ālē-əs, ālyəs)
1. An assumed name: The swindler worked under various aliases.
2. Computers An alternate name or address, especially an email address that forwards incoming email to another address.
3. Electronics A false signal in telecommunication links from beats between signal frequency and sampling frequency.
Also known as; otherwise: Johnson, alias Johns.
[Latin aliās, otherwise, at another time, from feminine accusative pl. of alius, other; see al-1 in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 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.