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[las-oh, la-soo] /ˈlæs oʊ, læˈsu/
noun, plural lassos, lassoes.
a long rope or line of hide or other material with a running noose at one end, used for roping horses, cattle, etc.
verb (used with object), lassoed, lassoing.
to catch with or as with a lasso.
Origin of lasso
1760-70; < Spanish lazo < Latin laqueus noose, bond; see lace
Related forms
lassoer, noun
unlassoed, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for lassoed


/læˈsuː; ˈlæsəʊ/
noun (pl) -sos, -soes
a long rope or thong with a running noose at one end, used (esp in America) for roping horses, cattle, etc; lariat
verb -sos, -soes, -soing, -soed
(transitive) to catch with or as if with a lasso
Derived Forms
lassoer, noun
Word Origin
C19: from Spanish lazo, ultimately from Latin laqueus noose
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for lassoed


1807 (v.); 1808 (n.), American English, from Spanish lazo, from Latin laqueum (nominative laqueus) "noose, snare" (see lace (n.)).

Online Etymology Dictionary, © 2010 Douglas Harper
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