† κραταιόω, -ῶ
(late form of κρατύνω; < κράτος), [in LXX chiefly for חזק;]
to strengthen; pass., to wax strong: Lk 2:40, I Co 16:13; πνεύματι, Lk 1:80; δυνάμει κ. διὰ τ. πνεύματος, Eph 3:16.†
G. Abbott-Smith's A Manual Greek Lexicon of the New Testament
† κραταιόω, -ῶ
(late form of κρατύνω; < κράτος), [in LXX chiefly for חזק;]
to strengthen; pass., to wax strong: Lk 2:40, I Co 16:13; πνεύματι, Lk 1:80; δυνάμει κ. διὰ τ. πνεύματος, Eph 3:16.†