Lewis & Short

circumlĭtĭo, ōnis, f. [circumlino].

  1. I. A smearing or spreading over, anointing: oris, Plin. 24, 7, 24, § 40.
  2. II. In painting, an overlaying of color, the tint or hue given to marble by rubbing it with a mixture of oil and wax, Plin. 35, 11, 40, § 133; Sen. Ep. 86, 5; v O. Müll. Archaeol. § 310, 4.