stair
stair \'sta(*)r, 'ste(*)r\ n [ME steir, fr. OE st-ger; akin to OE & OHG sti-ga]n to rise, Gk steichein to walk 1: a series of steps or flights of steps for passing from one level to anot her 2: any one step of a stairway pl but sing in constr 3: a flight of steps : STAIRWAY