ὑπεξ-έρχομαι · hypex-erchomai — LSJ
go out from under, go out secretly, withdraw, retire, slip away from, withdraw from, escape from, keep out of oneʼs way, avoid, give up oneʼs right to
go out from under: go out secretly, withdraw, retire, Th. 8.70; Μέγαράδε, Ἀθήναζε, And. 1.15, D. 59.103; πόλεως Plu. Publ. 7; ὑ. λέγοντος slip away from . . , Pl. Tht. 182d: rarely c. acc. pers., withdraw from, escape from, Th. 3.34: c. acc. rei, νόσῳ ὑ. τὸν βίον App. Reg. 2: also c. dat., keep out of oneʼs way, avoid, Pl. Lg. 865e; give up oneʼs right to, τισι D. 37.7.
2 rise up and quit oneʼs domicile, emigrate
rise up and quit oneʼs domicile, emigrate, ἐς . . Hdt. 1.73, 8.36.
II go out to meet
go out to meet, Id. 1.176 (leg. ἐπεξ-).
III to be discharged
Medic., to be discharged from the bowel, Archig. ap. Aët. 9.28.