v. quick·ened, quick·en·ing, quick·ens
1. To make more rapid: Stress quickens the pulse.
2. To cause (a body or soul, for example) to become alive; vitalize.
3. To excite and stimulate; stir: Such stories quicken the imagination.
1. To become more rapid. See Synonyms at speed.
2. To come or return to life, as a soul.
3. To become excited or stimulated: Our interest in the project has quickened.
4. To reach the stage of pregnancy when the fetus can be felt to move.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 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.