προᾴδω

A. sing before, prelude, Aeschin. 2.163: c. acc., τὴν πόλιν προᾷσαι Him. Or. 5.4:—Pass., στροφὴ προᾳσθεῖσα Poll. 4.112.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project