ἡδυντέον
From LSJ
εἰ δὲ τύχῃ τις ἔρδων, μελίφρον' αἰτίαν ῥοαῖσι Μοισᾶν ἐνέβαλε → if someone is successful in his deeds, he casts a cause for sweet thoughts into the streams of the Muses
English (LSJ)
A one must season, Alex.186.4.
Greek (Liddell-Scott)
ἡδυντέον: ῥημ. ἐπίθ., πρέπει τις νὰ ἡδύνῃ, νὰ γλυκάνῃ, Ἄλεξ. Πονηρ. 1. 4.