Lariat
Lariat (lar"i*at) , noun
[Sp. la reata the rope; la the + reata rope. Compare Reata.]
A long, slender rope made of hemp or strips of hide, esp. one with a noose; -- used as a lasso for catching cattle, horses, etc., and for picketing a horse so that he can graze without wandering. [Mexico & Western United States]
Lariat (lar"i*at) , transitive verb
To secure with a lariat fastened to a stake, as a horse or mule for grazing; also, to lasso or catch with a lariat. [Western United States]