διοριστέον
From LSJ
βίος ἀνεόρταστος μακρὴ ὁδὸς ἀπανδόκευτος → a life without feasting is a long journey without an inn | a life without festivals is a long journey without inns | a life without festivals is a long road without inns | a life without festivity is a long road without an inn | a life without festivity is like a long road without an inn | a life without holidays is like a long road without taverns | a life without parties is a long journey without inns | a life without public holidays is a long road without hotels
English (LSJ)
A one must distinguish, Pl.Lg.874d, Arist.Ph.204a2, Longin.11.3, etc.
Greek (Liddell-Scott)
διοριστέον: ῥημ. ἐπίθ., πρέπει τις νὰ διακρίνῃ, Πλάτ. Νόμ. 874D, Ἀριστ., κτλ.