• shudder (v.): horreo, 2: I s. and tremble all over, totus h. et tremo, cf. Ter. Eun. 1, 2, 4: esp. in phr. to s. at: they s.'d at the cruelty of Ariovistus, crudelitatem Ariovisti horrebant, Caes. B. G. 1, 32: to s. at the very name of the accuser, ipsum nomen accusatoris h., Quint. 12, 7, 1. Comps.: (1.) exhorreo, 2 (rare and late): Col. (2.) pĕrhorreo, 2 (also rare and late): Jul. Val. Incept. horresco, horrui, 3: they begin to s. with fear of death, terrore mortis h., Cic. Fin. 5, 11, 31: he s.s at the sight, h. visu, Virg. Aen. 6, 710. Comps.: (1.) exhorresco, 3 (to s. exceedingly): to s. exceedingly with fear, metu exh., Cic. Fin. 1, 13, 43: Virg. (2.) pĕrhorresco, 3 (to s. greatly): I s. all over my body, toto corpore perh., Cic. Div. Verr. 13, 41: I s. at the distress of the vestal virgins, vexationem virginum vestalium p., id. Cat. 4, 6, 12. Phr.: how I s.'d, qui me horror perfudit, id. Att. 8, 6, 1.