from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To beat the stems and husks of (grain or cereal plants) with a machine or flail to separate the grains or seeds from the straw.
- transitive v. To separate (grains or seeds) in this manner.
- transitive v. To discuss or examine (an issue, for example) repeatedly.
- transitive v. To beat severely; thrash.
- intransitive v. To use a machine or flail to separate grain or seeds from straw.
- intransitive v. To thrash about; toss.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To separate the grain from the straw or husks by mechanical beating, with a flail or machinery.
- v. To beat soundly, usually with some tool such as a stick or whip; to drub.
from the GNU version of the Collaborative International Dictionary of English
- v. Same as thrash.
from The Century Dictionary and Cyclopedia
- In wire-drawing, to raise (a wire rod or bar of small section) high in the air and throw it heavily against a flat smooth plate on the ground in order to straighten it or to loosen the scale and dirt.
- To beat out or separate the grain or seeds from, by means of a flail or a threshing-machine, or by treading with oxen: in this sense commonly thresh.
- To beat soundly, as with a stick or whip; drub; hence, to beat in any way: in this sense commonly thrash.
- To practise threshing; beat out grain from straw with a flail or a threshing-machine: in this sense commonly thresh.
- To beat about; labor; drudge; toil.
- To throw one's self about; toss to and fro: usually with about: in this sense commonly thrash.
- n. See thrash.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. give a thrashing to; beat hard
- v. move like a flail; thresh about
- v. beat the seeds out of a grain
- v. move or stir about violently
Middle English thresshen, from Old English therscan; see terə-1 in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
Old English þrescan. (Wiktionary)