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Tweed (twēd)
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A river, about 160 km (100 mi) long, of southeast Scotland forming part of the Scottish-English border. It flows eastward to the North Sea and has rich salmon fisheries.

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
 
tweed (twēd)
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n.
1. A coarse, rugged, often nubby woolen fabric made in any of various twill weaves and used chiefly for casual suits and coats.
2. tweeds Clothing made of this fabric.

[Alteration (influenced by the river Tweed) of Scots tweel, twill, from Middle English twile; see TWILL.]

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
 
Tweed, William Magear Known as "Boss Tweed." 1823-1878.
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American politician. The Democratic boss of New York City in the 1860s, he defrauded the city of millions of dollars before being exposed and convicted (1873).

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. 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:

    Indo-European Roots

    Semitic Roots

    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.