noun, plural las·sos, las·soes.
- 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), las·soed, las·so·ing.
- to catch with or as with a lasso.
noun plural -sos or -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 or -soed
- (tr) to catch with or as if with a lasso
1807 (v.); 1808 (n.), American English, from Spanish lazo, from Latin laqueum (nominative laqueus) “noose, snare” (see lace (n.)).