διαφώτισις
From LSJ
τοῦ εἰδέναι χάριν ἡ πραγματεία → knowledge is the object of our inquiry, the aim of our investigation is knowledge
English (LSJ)
-εως, ἡ, clearing up, explanation, PGiss.67.14 (ii A. D.).
Spanish (DGE)
-εως, ἡ
aclaración, explicación, PGiss.67.14 (II d.C.), Ath.Al.M.28.293D.