Lewis & Short

rē̆tractĭo, ōnis, f. [retraho].

  1. I. A drawing back, retreating: graduum, i. e. the breadth, Vitr. 3, 4, 4.
  2. II. Trop.
      1. 1. A diminishing: dierum (opp. auctio), Macr. S. 1, 14.
      2. 2. Hesitation, refusal: sine ullā retractione, Arn. 5, 162.