διαβεβαιόω

A. confirm, ὑπόληψιν D.L. 8.70:—usu. Med. διαβεβαι‐όομαι, maintain strongly, affirm, confirm, D. 17.30; οἱ πρεσβύτεροι δ. οὐδέν Arist. Rh. 1389b16; δ. γεγονέναι τι D.S. 13.90, cf. Aristeas 99, D.H. 2.39, BGU 19i17 (ii A. D.), POxy. 67.10 (iv A. D.); to be positive, περί τινος Plb. 12.12.6, S.E. P. 1.191:—Pass., Phld. Rh. 1.226S., Sign. 17.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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