γλυκυθυμία
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)
ἡ,
A sweetness of mind, γ. πρὸς τὰς ἡδονάς readiness to indulge... opp. τὸ καρτερεῖν, Pl.Lg.635c, cf. Plu.2.476d. II kindly disposition, Id.Them.10, Id.2.970b; πρός τινα Sammelb.4630.8 (ii A. D.). III pleasantness, Iamb.Myst.5.11.
Greek (Liddell-Scott)
γλῠκῠθῡμία: ἡ, γλυκύτης πνεύματος, γλ. πρὸς τὰς ἡδονάς, ἑτοιμότης ἢ προθυμία τοῦ νὰ παραδοθῇ τις … , ἀντίθ. τῷ ἐγκράτεια, Πλατ. Νόμ. 635D. II. ἀγαθὴ διάθεσις, ἀγαθότης ψυχῆς, εὐμένεια, Πλούτ. Θεμ. 10, ὁ αὐτ. 2. 970B.