1. Soil composed of a mixture of sand, clay, silt, and organic matter.
2. A mixture of moist clay and sand, and often straw, used especially in making bricks and foundry molds.
tr.v. loamed, loam·ing, loams
To fill, cover, or coat with loam.
[Middle English lam, lom, clay, from Old English lām; see lei- in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 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.