Lewis & Short

clārĭgātĭo, ōnis, f. [clarigo],

  1. I. a solemn demand for redress, a religious solemnity with which the Fetialis declared war upon an enemy, in case he should refuse to give satisfaction within 33 days for injuries sustained (cf. Serv. ad Verg. A. 9, 53; 10, 14; Dict. of Antiq.), Plin. 1, epit. libr. 22, 3, p. 69 Bip.; Quint. 7, 3, 13; cf. Liv. 1, 32, 5 sq.
  2. II. In gen., a fine or ransom for a transgression of limits, to be exacted of the offender by any person finding him: (Veliterni) jussi trans Tiberim habitare, ut ejus, qui cis Tiberim deprehensus esset, usque ad mille passuum clarigatio esset, Liv. 8, 14, 6.