Lewis & Short

in-cresco, ēvi, v. n., to grow in or upon any thing (perh. not ante-Aug.).

  1. I. Lit.: non taedia animalium capillis increscunt, do not grow in the hair, Plin. 28, 11, 46, § 163.
    1. B. In gen., to grow, increase: lacrimis quoque flumina dicunt Increvisse suis, Ov. M. 11, 48: maxime cibo eget, qui increscit, Cels. 1, 3: ne cum increverint (arbores), Col. 3, 21.
  2. II. Trop.
    1. A. To grow or increase in: animis discordibus irae, Verg. A. 9, 688.
    2. B. In gen., to increase, augment: morbus increscit, Cels. 3, 2: dolor, Sen. Med. 951: audacia, Liv. 1, 33, 8: certamen, id. 10, 5, 2: fremitus, id. 45, 1, 3: increscere et invalescere sententiam, Dig. 33, 7, 12.
      Rhet., to advance from weaker to stronger expressions: hoc genus increscit, Quint. 8, 4, 2.