Dictionary entry

σφόδρα

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

σφόδραadv. (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.†