αἰωνιότης
From LSJ
μεγάλα ὠφελήσεσθε πρὸς ἱστορίαν τῶν κοινῶν → that will be of great benefit to you in order to understand public affairs
English (LSJ)
ἡ, perpetuitas, Gloss.
Spanish (DGE)
-ητος, ἡ
1 eternidad (τὸ πνεῦμα) αἰωνιότης ὑπάρχει Didym.M.39.517B, cf. M.39.708A.
2 perpetuitas, Gloss.2.221.
Greek (Liddell-Scott)
αἰωνιότης: -ητος, ἡ, διάρκεια παντοτεινή, Ἐκκλ.