[Repetition or Omission of a Preposition with several Substantives.]
[1429.] (1.) A preposition is often repeated with emphasis before two or more substantives: as,
in labōre atque in dolōre, Pl. Ps. 685, in toil and in trouble. Particularly so with et . . . et, aut . . . aut, nōn sōlum . . . sed etiam, nōn minus ... quam, &c., &c.: as, et ex urbe et ex agrīs, C. 2, 21, from Rome and from the country too.
[1430.] (2.) A preposition is often used with the first only of two or more substantives: as, in labōre ac dolōre, TD. 5, 41, in toil and trouble. incidit in eandem invidiam quam pater suus, N. 5, 3, 1, he fell under the selfsame ban as his father. Particularly when the second is in apposition: as, cum duōbus ducibus, Pyrrhō et Hannibale, L. 28, with two commanders, Pyrrhus and Hannibal.
[Two Prepositions with one Substantive.]
[1431.] (1.) When two prepositions belong to one and the same substantive, the substantive is expressed with the first. With the second, the substantive is repeated, or its place is taken by a pronoun: as,
contrā lēgem prōque lēge, L. 34, 8, 1, against the law and for the law. partim contrā Avītum, partim prō hōc, Clu. 88, partly against Avitus, partly for him. If, however, the two prepositions accompany the same case, the substantive need not be repeated: as, intrā extrāque mūnītiōnēs, Caes. C. 3, 72, 2, inside and outside the works.
[1432.] (2.) The second preposition is often used adverbially, without any substantive: as, et in corpore et extrā, Fin. 2, 68, both in the body and outside.