1. (used with a pl. verb) Gymnastic exercises designed to develop muscular tone and promote physical well-being: Sit-ups, trunk twists, and other calisthenics are demonstrated on the video.
2. (used with a sing. verb) The practice or art of such exercises: Calisthenics is recommended to relax the muscles before a run.
[From Greek kalli-, beautiful (from kallos, beauty) + sthenos, strength; see segh- 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.