ἑρμηνευτέον
From LSJ
οἵτινες πόλιν μίαν λαβόντες εὐρυπρωκτότεροι πολύ τῆς πόλεος ἀπεχώρησαν ἧς εἷλον τότε → after taking a single city they returned home, with arses much wider than the city they captured
English (LSJ)
A one must express: ἑ. προσφόρως one must use the appropriate style, Demetr. Eloc.120.
2 one must interpret, Sch.rec.A.Pr.226.
Greek (Liddell-Scott)
ἑρμηνευτέον: ῥημ. ἐπίθ. τοῦ ἑρμηνεύω, δεῖ ἑρμηνεύειν, Σχόλ. εἰς Αἰσχύλ. Πρ. 226.