Lewis & Short

3. strātus, ūs, m. [sterno].

  1. I. A spreading, strewing, Varr. R. R. 1, 50, 3.
  2. II. Transf., for the usual stratum, a cover, spread: in stratu omnem stragulam vestem, Dig. 50, 16, 45; Favorin. ap. Gell. 15, 8, 2.
    Of a horse-cloth, Sol. 45 med.