Lewis & Short

laxātĭo, ōnis, f. [laxo], a widening, wide space, width, breadth (post-Aug.).

  1. I. Lit.: duorum digitorum laxatio, Vitr. 4, 7, 4.
  2. II. A relief, mitigation, Cael. Aur. Tard. 2, 1, 52 al.