in Copy link Outline I. Denoting place where1. in (with abl.)2. when the adj. tōtus is joined with a subs., the abl. may be used without prep.3. in certain connexions only, chiefly where publicity is expressed, prō (with abl.)II. Denoting time when1. de (with abl.; of a period of time in the course of which something takes place)2. in (with abl.; usu. denoting a period of time during which [not merely in the course of which] a thing is done)3. abl. aloneIII. With reference to other circumstancesIV. Denoting directionV. Denoting rule, standard, manner, etc.1. in (with acc.)2. ad (with acc. = according to)3. abl. aloneVI. Denoting occasion, state, means or manner, per (with acc.)VII. Miscell. phr. • in: I. Denoting place where: 1. in (with abl.): in the heart, in the brain, in a field, in Italy, in corde, in cerebro, in agro, in Italia: Cic.: Caes. (passim). (N.B.--But when stress is not laid upon the prep., in one's house, in Rome, etc., may be expr. as locatives by gen. or abl., domi, Romae, etc.: L. G. § 257.) 2. when the adj. tōtus is joined with a subs., the abl. may be used without prep.: in the whole ocean, toto mari, Cic. Man. 11, 31; where, however, the sense is rather throughout: also lŏcus, rĕgio, terra, are used with the demonstrative and determinative prons., and sometimes other adjj. without a prep.: as, hoc loco, eo loco, eodem loco, multis locis: cf. Zumpt, L. G. § 481. (N.B.--The poets and later writers freely use all subss. denoting place in the abl. without a prep., even though there be no attributive: cf. Zumpt, l. c.) 3. in certain connexions only, chiefly where publicity is expressed, prō (with abl.): cf. Fest. in Paul. Diac. s. v., pro rostris, id est, in rostris: so pro contione, in the (public) assembly, Sall. Jug. 8: Liv. Phr.: in (the writings of) Plato, Xenophon, apud Platonem, apud Xenophontem, Cic. Off. 1, 9, 28: de Sen. 22, 79, etc. (For in the presence of, v. presence.) II. Denoting time when: 1. de (with abl.; of a period of time in the course of which something takes place): to rise in the night, de nocte surgere, Hor. Ep. 1, 2, 32: in the course of the third watch, de tertia vigilia, Caes. B. G. 1, 12: late in the night, multa de nocte, Cic. Sext. 35, 75: in the month of December, de mense Decembri (rare), Cic. Q. Fr. 2, 1, extr. 2. in (with abl.; usu. denoting a period of time during which [not merely in the course of which] a thing is done): I did so too in my youth, feci ego isthaec et idem in adolescentia, Pl. Bac. 3, 3, 6: in (throughout) all one's life, in omni aetate, Cic. Sen. 3, 9: oft. after numeral advv., twice in a day, bis in die, Cic. Tusc. 5, 35, 100 (but the abl. occurs also alone). 3. abl. alone: this occurs when the subs. of time has an attributive, as anno tertio, quarto, etc.; mense Januario, Februario, etc.; also, when a season of the year is particularised, even without an attributive, as hieme, aestate, Cic. Div. 1, 42, 94; and in the case of die, nocte, Cic. N. D. 2, 9, 24 (denoting continuance; whereas de die, de nocte, denote merely that something takes place in the course of the time). III. With reference to other circumstances: in (with abl.): in what position, in what danger, quo in loco, quanto in periculo, Caes. B. G. 2, 26: to be in the wrong, in vitio esse, Cic. Off. 1, 7, 23: to be heavily in debt, magno in aere alieno esse, Cic. Cat. 2, 8, 18. IV. Denoting direction: in (with acc.): the camp extended more than 8 miles in breadth, castra amplius millibus passuum octo in latitudinem patebant, Caes. B. G. 2, 7. (This sense may oft. be conveyed by an adj. with acc. of extent: six feet in height, breadth, etc., altus, latus sex pedes, etc.: v. high, broad, etc.) V. Denoting rule, standard, manner, etc.: 1. in (with acc.): a decree of the Senate was passed in these words, S. C. in haec verba factum est, Liv. 30, 43: in the manner of slaves, servilem in modum, Cic. Verr. Act. 1, 5, 13. 2. ad (with acc. = according to): in the likeness of, ad similitudinem, Cic. N. D. 2, 64, 161: in the same manner (to the same effect), ad eundem modum, Ter. Ad. 3, 3, 70; so ad hunc modum, of the general scope of a speech, Caes. B. G. 2, 31. 3. abl. alone: usu. constr. in the case of modal substantives: in what manner, in this manner, in every possible way, quo modo, hoc modo, omni modo, omnibus modis, etc., Ter.: Cic.: passim. VI. Denoting occasion, state, means or manner, per (with acc.): to do anything in anger, facere aliquid per iram, Cic. Tusc. 4, 37, 79: in sport, per ludum et jocum, Cic. Verr. 2, 1, 60, 155. VII. Miscell. phr.: in consequence of the fact that, ex eo quod, Cic. Fin. 2, 9, 28: in the meanwhile, interim (v. MEANWHILE): in that, quod, cf. Caes. B. G. 1, 14, num etiam recentium injuriarum, quod iter per provinciam per vim tentassent, quod Haeduos ... memoriam deponere posse? in proportion as ... so, quo ... eo (with compar.).