Lewis & Short

ĭn-horresco, 3, v. inch. n., to send forth sharp points, to rise erect, to bristle up.

  1. I. Lit.: gallinae inhorrescunt edito ovo excutiuntque sese, Plin. 10, 41, 57, § 116: inhorrescit mare, Pac. ap. Cic. Div. 1, 14, 24 (Trag. Rel. v. 411 Rib.): mobilibus veris inhorruit Adventus foliis (poet. for folia inhorrescunt, varie agitantur auris vernis), Hor. C. 1, 23, 5, v. Orell. ad h. l.: frigorum impatientia papiliones villis inhorrescunt, Plin. 11, 23, 27, § 77: trifolium inhorrescere et folia contra tempestatem subrigere, id. 18, 35, 89, § 365: Atlas nemoribus inhorrescit, Sol. 24.
  2. II. Transf., to tremble, shake, shiver.
    1. A. With fever, Cels. 3, 12 med.: frigida potio inutilis est iis qui facile inhorrescunt, id. 1, 3.
      With cold: aër nivibus et glacie inhorrescit, App. de Mund. p. 58, 33: cum tristis hiems aquilonis inhorruit alis, Ov. Ib. 199.
    2. B. To quake, shudder, with fear, horror, App. M. 5, p. 172, 22: solitudo inhorrescit vacuis, Tac. H. 3. 85; id. A. 11, 28.
      Rarely with acc.: adeo rebus accommodanda compositio, ut asperis asperos etiam numeros adhiberi oporteat, et cum dicente aeque audientem inhorrescere, Quint. 9, 4, 126.
      Transf., to shudder at: severitatis vim, Aur. Vict. Caes. 24.