ἑρμηνευτέον
From LSJ
καὶ λέγων ὅτι Πεπλήρωται ὁ καιρὸς καὶ ἤγγικεν ἡ βασιλεία τοῦ θεοῦ· μετανοεῖτε καὶ πιστεύετε ἐν τῷ εὐαγγελίῳ → declaring “The time has been accomplished and the kingdom of God is near: start repenting and believing in the gospel!” (Μark 1:15)
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.