Lewis & Short

2. attrītus, ūs, m. [attero], a rubbing on or against something (post-Aug.).

  1. I. In gen.: (sues) inter se dimicant indurantes attritu arborum costas, Plin. 8, 52, 78, § 212; 9, 45, 68, § 147; 16, 40, 77, § 208; 37, 3, 12, § 48; Sen. Ira, 3, 4.
  2. II. Med. t., an inflammation of the skin caused by rubbing (cf. attero, P a.): ulcera ex attritu facta, Plin. 33, 6, 35, § 105; 26, 8, 58, § 91 (Jan, trita); 28, 16, 62, § 222.