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thrum²

(thrŭm)

a. The fringe of warp threads left on a loom after the cloth has been cut off.

b. One of these threads.

2. A loose end, fringe, or tuft of thread or wool.

tr.v. thrummed, thrum·ming, thrums

1. To cover or trim with thrums; fringe.

2. To knit thrums into (mittens, hats, or socks).

[Middle English, from Old English -thrum, ligament (in tungethrum, ligament of the tongue).]

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.

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