1. A structure of open latticework, especially one used as a support for vines and other climbing plants.
2. An arbor or arch made of latticework.
tr.v. trel·lised, trel·lis·ing, trel·lis·es
1. To provide (an area) with a trellis.
2. To cause or allow (a vine, for example) to grow on a trellis.
[Middle English trelis, from Old French, from Vulgar Latin *trilīcius, from Latin trilīx, trilīc-, woven with three threads : tri-, tri- + līcium, thread.]
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.