A U-shaped metal piece with holes in each end through which a pin or bolt is run, used as a fastening device.
[From clevi, possibly of Scandinavian origin; akin to Old Norse klofi, cleft; see gleubh- in the Appendix of Indo-European roots.]
(click for a larger image)clevis
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.