1. A confused or disordered state or collection; a jumble: sorted through the clutter in the attic.
2. A confused noise; a clatter.
v. clut·tered, clut·ter·ing, clut·ters
1. To fill or spread over in a disorderly manner: Boxes cluttered the garage.
2. To make disorderly or hard to use by filling or covering with objects: I cluttered up my desk with old memos.
1. To run or move with bustle and confusion.
2. To make a clatter.
[Probably from Middle English cloteren, to clot, from clot, lump, from Old English clott.]
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.