[ski] n, pl skis also ski [Norw, fr. ON skith stick of wood, ski; akin to OE scid board, sceadan to divide--more at shed] (1755) 1 a: one of a pair of narrow strips of wood, metal, or plastic curving upward in front that are used esp. for gliding over snow b: water ski
2: a piece of material that resembles a ski and is used as a runner on a vehicle
[2]ski vb skied ; ski.ing vi (ca. 1890): to glide on skis in travel or as a sport ~ vt: to travel or pass over on skis -- ski.able adj -- ski.er n