legs(n = noun.attribute) - staying power; "that old Broadway play really has legs"
is a kind of stamina, staying power, toughness

N  journey, travel, traveling, wayfaring, campaigning, journey, excursion, expedition, tour, trip, grand tour, circuit, peregrination, discursion, ramble, pilgrimage, hajj, trek, course, ambulation, march, walk, promenade, constitutional, stroll, saunter, tramp, jog trot, turn, stalk, perambulation, noctambulation, noctambulism, somnambulism, outing, ride, drive, airing, jaunt, equitation, horsemanship, riding, manege, ride and tie, basophobia, roving, vagrancy, pererration, marching and countermarching, nomadism, vagabondism, vagabondage, hoboism, gadding, flit, flitting, migration, emigration, immigration, demigration, intermigration, wanderlust, plan, itinerary, guide, handbook, guidebook, road book, Baedeker, Bradshaw, Murray, map, road map, transportation guide, subway map, procession, cavalcade, caravan, file, cortege, column, vehicle, automobile, train, bus, airplane, plane, autobus, omnibus, subway, motorbike, dirt bike, off-road vehicle, van, minivan, motor scooter, trolley, locomotive, legs, feet, pegs, pins, trotters, traveler, depot, railway station, station, traveling, ambulatory, itinerant, peripatetic, roving, rambling, gadding, discursive, vagrant, migratory, monadic, circumforanean, circumforaneous, noctivagrant, mundivagrant, locomotive, wayfaring, wayworn, travel-stained, on foot, on horseback, on Shanks's mare, by the Marrowbone stage: in transitu, en route, Int, come along!.

bandy legs, bow legs, crab legs, frog legs, restless legs, restless legs syndrome, sea legs, thousand legs