ψιά
From LSJ
πενία μόνα τὰς τέχνας ἐγείρει → poverty alone promotes skilled work, necessity is the mother of invention, necessity is the mother of all invention, poverty is the mother of invention, out of necessity comes invention, out of necessity came invention, frugality is the mother of invention
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.)
German (Pape)
[Seite 1398] ἡ, auch ψειά, eigtl. jedes kleine Theilchen, Stückchen, Körnchen, Bröckchen, gew. Steinchen, abgeriebener, geglätteter Kiesel, bes. zum Spiel für Kinder; dah. Spiel, Scherz, Vergnügen, VLL.