prolŏgus (noun M) = πρόλογος: .
* Lit., a preface or introduction to a play, a prologue, Ter. Phorm. prol. 14: in prologis scribundis operā abutitur,id. And. prol. 5: in Hydriae (Menandri) prologo,Quint. 11, 3, 91: in prologo Adelphorum,Suet. Vit. Ter. 2.
* Transf., the player who delivers the prologue: oratorem esse voluit me, non prologum,Ter. Heaut. prol. 11; id. Hec. prol. alt. 1 (prō-, v. Wagn. ad Ter. Heaut. prol. 11).

s. TLL