Sermúnculus, li, m.g. pen. cor. Diminut. Plin. iun.A little talke or communication.Vrbani maleuol orum sermunculi.Cic.Sermunculum omnem restinguere aut sedare.Cic.
Lewis and Short: Latin dictionary
sermuncŭlus, i, m.dim. [sermo]. I. (Acc. to sermo, I. B. 3.) Common talk, tittletattle, report, rumor (rare but class.): urbani sermunculi, Cic. Deiot. 12, 33: sermunculis fabellisque duci, Plin. Ep. 5, 8, 4: sermunculum omnem aut restinxerit aut sedarit, Cic. Att. 13, 10, 3: non deterreor sermunculis istorum, Plin. Ep. 7, 17, 14.—II.A little discourse (late Lat.), Hier. Ep. 32, 1.