horrĭfĭco, āvi, ātum, 1, v. a. [horrificus],
to make rough or terrible , to cause terror (poet. and in post-Aug. prose): flatu placidum mare matutino Horrificans Zephyrus, ruffling , = crispans, Cat. 64, 271: ore ferarum Et rictu horrificant galeas, Sil. 3, 389: carcer, catenae, fuga, exsilium horrificaverant dignitatem, had made terrible , Flor. 3, 21, 10 Duk.: mentes, Claud. Bell. Get. 250.— Absol. : multaque praeterea vatum praedicta piorum Terribili monitu horrificant, cause horror , Verg. A. 4, 465.