D defs.my
Entry 1 sense Webster, 1913

Stayer

/(stā"ẽr)/ · Stay·er · IPA /ˈsteɪ.ɚ/
01 n. One who upholds or supports that which props; one who, or that which, stays, stops, or restrains; also, colloquially, a horse, man, etc., t…
  1. 1.
    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.