v. swooped, swoop·ing, swoops
1. To move in a sudden sweep: The bird swooped down on its prey.
2. To make a rush or an attack with a sudden sweeping movement. Often used with down: The children swooped down on the pile of presents.
To seize or snatch in a sudden sweeping movement.
The act or an instance of swooping.
[Middle English swopen, to sweep along, from Old English swāpan, to sweep, swing.]
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.