lariat(n = noun.artifact) lasso, reata, riata - a long noosed rope used to catch animals;
is a kind of rope
has parts: noose, running noose, slip noose

   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. [1913 Webster]

   To secure with a lariat fastened to a stake, as a horse or mule for grazing; also, to lasso or catch with a lariat. [1913 Webster]

lariat, n.
1 a lasso.
2 a tethering-rope, esp. used by cowboys.

Etymology:
Sp. la reata f. reatar tie again (as RE-, L aptare adjust f. aptus APT, fit)

N  connection, vinculum, link, connective, connection, junction, bond of union, copula, hyphen, intermedium, bracket, bridge, stepping-stone, isthmus, bond, tendon, tendril, fiber, cord, cordage, riband, ribbon, rope, guy, cable, line, halser, hawser, painter, moorings, wire, chain, string, fastener, fastening, tie, ligament, ligature, strap, tackle, rigging, standing rigging, running rigging, traces, harness, yoke, band ribband, bandage, brace, roller, fillet, inkle, with, withe, withy, thong, braid, girder, tiebeam, girth, girdle, cestus, garter, halter, noose, lasso, surcingle, knot, running knot, cabestro, cinch, lariat, legadero, oxreim, suspenders, pin, corking pin, nail, brad, tack, skewer, staple, corrugated fastener, clamp, U-clamp, C-clamp, cramp, cramp iron, ratchet, detent, larigo, pawl, terret, treenail, screw, button, buckle, clasp, hasp, hinge, hank, catch, latch, bolt, latchet, tag, tooth, hook, hook and eye, lock, holdfast, padlock, rivet, anchor, grappling iron, trennel, stake, post, cement, glue, gum, paste, size, wafer, solder, lute, putty, birdlime, mortar, stucco, plaster, grout, viscum, shackle, rein, prop.