Dictionary entry

ῥώννυμι

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament with Strong's

ῥώννυμι

[in LXX: II Mac 9:20 11:21, 28, 33; III Mac6 *;]

to strengthen; most freq. in pf., ἔρρωμαι, to put forth strength, be strong, hence, often in imperat., ἔρρωσο, ἔρρωσθε, farewell (Lat. vale): Ac 15:2923:30 Rec., R, mg.†