1. Chiefly British A male sheep; a ram.
2. A heavy metal body, especially the head of a power hammer.
v. tupped, tup·ping, tups
To copulate with (a ewe). Used of a ram.
To copulate with a ewe.
[Middle English tupe.]
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.