mack·le (măkəl) also mac·ule (măkyl′)
A blurred or double impression in printing.
v. mack·led, mack·ling, mack·les also mac·uled or mac·ul·ing or mac·ules
To blur or double (a printed impression).
To become blurred.
[Middle English macule, spot, from Old French, from Latin macula.]
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.