Other forms: threshing, threshed, threshes
To thresh is to beat grain loose from its stalks. Thresh the wheat, a threshing floor, threshed by hand.
It was the great winter labour before machines, done with a flail on a hard floor, and the threshing machine caused riots when it took the work away. Note thrash, which is the same word split off, and threshold, whose connection is disputed.
1verbthreshTo beat grain loose from its stalks.
“In the old days, farmers threshed the wheat by beating it on the barn floor.”
thresh is a beating.
Old English therscan means to thresh or beat, from a Germanic root. Thrash is the same word, split off in spelling and sense.
Proto-Indo-European
*terh₁- — to rub, turn; to drill, pierce
Proto-Germanic
*þreskaną — to thresh; to tread
Old English
þerscan
Middle English
thrasshen
English, today
thresh
From Middle English thrasshen, thresche, threschen, threschyn, threshen, thresshen, tressyn, þreisshe, þresshe, from Old English þerscan, þrexan, from Proto-Germanic þreskaną (“to thresh; to tread”), from Proto-Indo-European terh₁- (“to rub, turn; to drill, pierce”). a doublet of thrash. 2 Cognate with Dutch dorsen (“to thresh; to thrash”), German and lb dreschen (“to thresh; to thrash”), Yiddish דרעשן (“to thresh”), Danish tærske (“to thresh”), Faroese treskja (“to thresh”), Icelandic þreskja (“to thresh”), Norwegian Nynorsk treska, treske, treskja, treskje (“to thrash”), Swedish tröska (“to thresh”), Gothic 𐌸𐍂𐌹𐍃𐌺𐌰𐌽 (“to thresh”), Finnish rehkiä (“to drudge; to toil”); also Welsh taradr (“auger, wimble; awl, borer; drill”), Latin terō (“to rub or triturate; to wear away or wear out, consume; to tread; to press with a mill; to pass, spend”), Greek τρίβω (“to grate; to rub”), Albanian tjerr (“to spin”), be це́рці (“to rub; to polish; to pinch; to grind”), Bulgarian три́я (“to rub; to chafe; to grind”), Czech třít (“to rub; to spawn”), Polish tarć, treć, trzeć, trzyć (“to rub; to shred; to cut; to chafe; to crush; to spawn”), Russian тере́ть (“to rub; to polish; to grind”), Serbo-Croatian тр̏ти, tȑti (“to rub; to cause friction; to scour; to break, crush”), Slovak trieť (“to rub”), Slovene treti (“to crack open; to rub”), Ukrainian те́рти (“to rub; to scrub”), Armenian թուր (“sword”), sog ܕܣܦܪܛܪ (“hand towel”), hit 𒋻𒌑𒍣 (“to perform a round dance, to dance in twisting manner”), xto and txb tärk- (“to allow, let; to let go”), Sanskrit तर्कु (“spindle”).
Etymology from Wiktionary, CC BY-SA