half Copy link Outline A. Adj.1. dīmĭdĭus (esp. with pars)2. dīmĭdiātusB. Subs.1. dīmĭdia pars2. dīmĭdium3. sēmis, issis, m. (strictly, the h. of an as)C. Adv. • half: A. Adj.: 1. dīmĭdĭus (esp. with pars): the moon is larger than the h. (part) of the earth, luna est major quam d. pars terrae, Cic. N. D. 2, 40, 103: Caes. In later writers with other words: a h. leg, d. crus, Juv. 13, 95. 2. dīmĭdiātus: a h. moon, d. luna, Cato in Plin. 16, 39, 75: h. a month, d. mensis, Cic. Verr. 2, 2, 52, 129: Caes. B. Subs.: 1. dīmĭdia pars: h. the work, d. pars operis, Caes.: Cic.: v. supr. (1). 2. dīmĭdium: the h. of an hour, d. horae, Lucil.: the h. of an achievement, d. facti, Hor. Ep. 1, 2, 40. Esp. in abl. after a compar.: Ireland less by h. than Britain, Hibernia dimidio minor quam Britannia, Caes. B. G. 5, 13. 3. sēmis, issis, m. (strictly, the h. of an as): the old sesterce is two pounds and a h., dupondius et s. antiquus sestertius est, Varr.: the h. of Africa, s. Africae, Plin. 18, 6, 7, § 3: heir to one h. of a property, heres ex semisse: v. heir. See also halves. C. Adv.: usu. expr. by prefix sēmĭ-: v. foll. artt. Phr.: well begun is h. done, dimidium facti qui coepit habet, Hor. Ep. 1, 2, 40: the work being only h. done, *nonnisi dimidia parte operis perfecta: v. halves.