θυείδιον
From LSJ
ἀσκεῖν περὶ τὰ νοσήματα δύο, ὠφελεῖν ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm
English (LSJ)
τό, Dim. of θυεία, Ar.Pl.710; wrongly written θυΐδιον in cod. Rav., as in Damocr. ap. Gal.14.118.
German (Pape)
[Seite 1221] τό, dim. zum Vorigen, Ar. Plut. 710, wo cod. Rav. θυΐδιον hat, welche Form sich bei Galen. findet.
Greek (Liddell-Scott)
θυείδιον: τό, ὑποκορ. τοῦ θυεία, Ἀριστοφ. Πλ 710, Δημόκρ. παρὰ Γαλην. 14. 118∙ - ὁ τύπος θυΐδιον ἐν τῷ Ραβ. Ἀντιγρ. τοῦ Ἀριστοφ. εἶναι ἐσφαλμένος.