Lewis Short
ēgressĭo (noun F) : egredior
* A going out or forth (post-Aug.).
* Lit.: nocturna (ex castello),App. M. 8, p. 208, 7; Hier. Ep. 78, 1: eorum ex Aegypto,Vulg. Num. 1, 1; and so in gen. of the Exodus: filiorum Israel,id. ib. 33, 38; 1 Reg. 18, 30.
* Trop., in rhet. lang., a digression in speaking, like παρέκβασις, Quint. 4, 3, 12; 15; 3, 9, 4; cf. ib. 4, 3: de egressione.—In plur., id. 11, 3, 164; 12, 10, 60.
Charlton T. Lewis, Charles Short, A Latin Dictionary