Lewis & Short

lătĕrālis, e, adj. [2. latus], of or belonging to the side, lateral.

  1. I. Adj. (ante- and post-class.): lateralis dolor, Enn. ap. Victor. p. 1963 P. (Ann. v. 601 Vahl.; for which: lateris dolor, Plin. 21, 21, 89, § 155): cingula, Calp. Ecl. 6, 40.
  2. II. Subst.: lătĕrālĭa, ĭum, n., saddle-bags, Dig. 32, 1, 102.