ἀγρυπνητέον
From LSJ
προγράψαντες οὖν τά τε θεωρήματα καὶ τὰ ἐπιτάγματα τὰ χρεῖαν ἔχοντα εἰς τὰς ἀποδείξιας αὐτῶν μετὰ ταῦτα γραψοῦμές τοι τὰ προκείμενα → having therefore written at the beginning the theorems and the postulates that are necessary for their proofs, we will then write out for you the propositions
English (LSJ)
one must watch, Eust 168.16.
Spanish (DGE)
hay que vigilar, mantenerse alerta Eust.168.16.
Greek (Liddell-Scott)
ἀγρυπνητέον: ῥηματ. ἐπίθ., πρέπει νὰ ἀγρυπνῇ τις, Εὐστ. Ἰλ. Β. 25.
