Lewis & Short

cinctōrĭum, ii, n. [2. cinctus],

  1. I. a swordbelt, = balteus, Mel. 2, 1, 13.
  2. II. In gen., a girdle (late Lat.); trop.: et erit … fides cinctorium renum ejus, Vulg. Isa. 11, 5.