προόμνυμι

A. swear before or beforehand, D. 29.57; τοὺς θεοὺς ἦ μὴν ἐλπίζειν . . by the gods, Pl. Lg. 954a; π. ὅρκον Paus. l. c.: c. acc. et inf., προυμόσας τό μ’ εἰδέναι A. Ag. 1196; π. τι εἶναι D. 29.52.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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