Lewis & Short

compŭtātĭo, ōnis, f. [computo], a computing, reckoning; a computation (post-Aug.).

  1. I. In gen., Sen. Ep. 84, 7; id. Ben. 7, 10, 4; Plin. 2, 108, 112, § 247; 6, 33, 38, § 206; Plin. Pan. 38, 3; * Quint. 1, 10, 35 al.
  2. II. Specif., the reckoning of avaricious men, close reckoning, niggardliness, parsimony, Sen. Ben. 4, 11, 2; Plin. 17, 22, 35, § 192.