ψιά
From LSJ
Τὸ μανθάνειν δ' ἥδιστον εὖ λέγοντος, εἰ κέρδος λέγοι → It is the sweetest thing to learn from one speaking well, if they speak profitably
English (LSJ)
ἡ,
A = χαρά, γελοίασμα, παίγνια, Hsch: hence ψῐάζω, Dor. ψιάδδω, play, sport, τοὶ δὴ παρ' Εὐρώταν ψιάδδοντι Ar.Lys.1302 (lyr.); ψιάδδειν· παίζειν, Hsch. (Prob. shortd. forms of ἑψία, ἑψιάομαι, qq. v.)