stayer

One who supports or upholds; a supporter; a backer.

One who or that which stops or restrains.

One who stays or remains: as, a stayer at home.

One who has sufficient endurance to hold out to the end; a person or an animal of staying qualities, as in racing or any kind of contest; one who does not readily give in through weakness or lack of perseverance.

One who upholds or supports that which props; one who, or that which, stays, stops, or restrains; also, colloquially, a horse, man, etc., that has endurance, as in a race.

One who, or that which, upholds or supports; a prop.

One who, or that which, stays, stops, or restrains.

An athlete, horse, etc. with staying power.

a person or other animal having powers of endurance or perseverance