γευστέον
From LSJ
τὸ πεπρωμένον γὰρ οὐ μόνον βροτοῖς ἄφευκτόν ἐστιν, ἀλλὰ καὶ τὸν οὐρανόν ἔχουσι → fate is unavoidable not only for mortals, but also for those who hold the heavens
English (LSJ)
A one must make to taste, τινὰ αἵματος Pl.R.537a.
Greek (Liddell-Scott)
γευστέον: ῥημ. ἐπίθ. τοῦ γεύω, καὶ γεύομαι, τινά τινος Πλάτ. Πολιτ. 537A.