εἴςβασις

εως, ἡ
A. an entrance, εἰσβάσεις μηχανώμενοι devising ways of entrance, E. IT 101; embarkation, Th. 7.30, D.C. 41.42; introductory process, first stage of a magical operation, PMag.Par. 1.397.

Text: Perseus Digital Library, CC BY-SA 3.0

Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project