from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A grass (Bromus tectorum) that is native to Eurasian temperate regions and has become widespread in the grasslands of the western United States. Also called downy brome.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A local name for various types of grasses which resemble, but are different from, the predominant species growing in that locality.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. annual or winter annual grass with softly hairy leaves of the Mediterranean
Perhaps akin to cheat, bread made of inferior-quality wheat (from Middle English chet, from Old French) + grass.(American Heritage® Dictionary of the English Language, Fourth Edition)
From cheat + grass (because they often resemble other types of grass growing nearby). (Wiktionary)