εἴην
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)
French (Bailly abrégé)
opt. de εἰμί.
Greek (Liddell-Scott)
εἴην: εὐκτ. ἀορ. β΄ τοῦ ἵημι· ἀλλ’ εἴην εὐκτ. ἐνεστ. τοῦ εἰμὶ (ὑπάρχω).
English (Strong)
optative (i.e. English subjunctive) present of εἰμί (including the other person); might (could, would, or should) be: mean, + perish, should be, was, were.
Greek Monotonic
εἴην: ευκτ. του εἰμί (sum)· εἶεν, γʹ πληθ. αντί εἴησαν.
Russian (Dvoretsky)
εἴην: opt. к εἰμί.
