tr.v. per·cussed, per·cuss·ing, per·cuss·es
To strike or tap firmly, as in medical percussion: The doctor percussed the patient's chest.
[Latin percutere, percuss-, to strike hard : per-, per- + quatere, to strike; see kwēt- in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 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.