from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Couch grass.
from the GNU version of the Collaborative International Dictionary of English
- A perennial grass (Agropyrum repens) having long running rootstalks, by which it spreads rapidly and pertinaciously, and so becomes a troublesome weed. Also called couch grass, quack grass, quick grass, twitch grass. See Illustration in Appendix.
Middle English quich, from Old English cwice; see gwei- in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
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