Abbott-Smith Manual Greek Lexicon
σφόδρα (G4970)
11 σφόδρα adv. (prop. neut. of σφοδρός , excessive, violent ) [in LXX chiefly for מְאֹד ;] very, very much, exceedingly : with verbs, Mt 17:6 , 23 18:31 19:25 26:22 27:54 , Ac 6:7 ; with adjectives, Mt 2:10 , Mk 16:4 , Lk 18:23 , Re 16:21 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain