Lewis & Short

2. pŏsĭtus, ūs, m. [pono], a position, situation; disposition, order, arrangement (rare; ante-Aug.; perh. only once in Sallust): positu variare capillos, Ov. Med. Fac. 19; so id. M. 2, 412: ossium, Cels. 8, 1: siderum, Tac. A. 6, 21: insulae, Sall. Fragm. ap. Don. ad Ter. Phorm. 1, 2, 47 (p. 247 Gerl.): regionis, Tac. A. 4, 5; cf.: dubium positu Urbs, Ov. P. 4, 7, 23; and: Trinacris, a positu nomen adepta loci, id. F. 4, 420; plur., ways of arranging the hair, id. A. A. 3, 151.