ἰσχυροποιέω
From LSJ
Κύριε, βοήθησον τὸν δοῦλον σου Νῖλον κτλ. → Lord, help your slave Nilos ... (mosaic inscription from 4th-cent. church in the Negev)
English (LSJ)
A strengthen, τὴν δύναμιν D.S.17.65; τὰς ἐπικρατείας τινός Plb.28.20.7; τόπον J.AJ15.8.5; στόμαχον [Gal.]14.752; establish, τὰς διατριβὰς τῶν ῥητορικῶν Phld.Rh.1.192S.:—Med., Onos.21.2:—Pass., ἰσχυροποιεῖται τὰ μέσα Ascl.Tact.10.16; τῆς δυναστείας -ουμένης D.S.14.9, cf. Arr.Epict.2.18.7; of assertions, Vett.Val.333.7; to be valid, ἡ ἀναλογία οὐκ -εῖται S.E.M.1.201.