Lewis & Short

sortĭo, īre, to draw lots (ante-class.; collat. form of sortior): tute sorti, Plaut. Cas. 2, 6, 43; 2, 6, 61: inter se sortiant, Varr. ap. Non. 471, 5.
With acc.: inter se sortiunt urbem atque agros, Enn. ap. Non. 471, 10 (Trag. v. 153 Vahl.).

      1. b. sortītus, a, um, Part., in pass. signif., drawn by lot, assigned or obtained by lot (class.): consilia, quae erant sortita in singulos candidatos, Cic. Att. 4, 16, 6; Prop. 4 (5), 11, 20: gemina est sedes sortita per amnem, id. 4 (5), 7, 55: mille urbes Asiae sortito rexerit anno, Stat. S. 5, 2, 57: conjux, Amm. 18, 6, 14.