a. The act or process of respiration.
b. A single breath.
2. The time required to take one's breath.
a. Either of two marks, the rough breathing ( ʿ ) and the smooth breathing ( ), used in Greek to indicate presence or absence of aspiration.
b. The presence or absence of aspiration indicated by either of these marks.
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.