Lewis & Short

inter-rādo, rāsi, rāsum, 3, v. a. (al. most exclusively in Pliny and Columella).

  1. I. Lit., to scrape here and there: interrasa cortice, Paul. Nol. Carm. 27, 254.
    1. B. Esp., to emboss or work in low relief: latera vasorum, Plin. 33, 11, 49, § 140.
  2. II. To prune here and there: oleae interradi gaudent, Plin. 15, 1, 2, § 4: olivetum, id. 17, 18, 30, § 130: arbores, Col. Arb. 19.