διασᾰφ-έω · diasaph-eō — LSJ
make quite clear, show plainly, ἐλπίδας οὔσας κενάς E. Ph. 398; τι Pl. Lg. 916e, Phld. Lib. p.13O., etc.; δ. εἴτε . . εἴτε μή Pl. Prt. 348b, cf. Phld. Po. 5.13; also δ. περί τινος make a clear statement about . ., Arist. de An. 404b1; δ. εἰς Καρχηδόνα περί τινος send clear information . ., Plb. 3.87.4; δ. ὑπέρ τινος Id. 2.19.13; instruct plainly, ἵνα . . Id. 4.26.3, LXX 2 Ma. 1.18; ὅπως PEleph. 18.3 (iii B. C.):—Med., dub. in PPar. 70p.413:—Pass., Arist. EN 1094b12, etc.