ψίττα
From LSJ
Νέοις τὸ σιγᾶν κρεῖττόν ἐστιν τοῦ λαλεῖν → Sermone melius est iuveni silentium → Es schweigen besser, statt zu schwätzen, junge Leut'
English (LSJ)
A = σίττα (q. v.), Sch.Theoc.4.45; = ταχέως, εὐθέως, Hsch. (cf. ψύττα); used in a game, Poll.9.122,127, Eust.855.25, al. (ψίττα in codd. Poll., Eust., is f.l.).