skail-the verbal stem in combination, as skail-door, -water(seequots.); † skail-wind, a scattering wind.1709M. Bruce Serm. 13 (Jam.), You shall all be scattered... You are sure enough now, but beware of the next blast that is to blow, it will make a skealwind among you.1825Jamieson Suppl., Skail-Water, the water that is let off by a sluice before it reaches the mill.1883Gresley Gloss. Coal-m., Scale Door,..a door in the mine, the opening or closing of which regulates the supply of ventilation to a district.