Lewis & Short

exaequātĭo, ōnis, f. [exaequo], an equalling.

  1. * I. Lit., a levelling: agrorum, Serv. Verg. G. 1, 95; concr., a level, a plane, Vitr. 5, 12, 4.
  2. II. Trop., a levelling, an equality: hanc ipsam exaequationem non fero (cf., shortly before: aequato omnium cultu), Liv. 34, 4, 14.