Definition:
σφόδρα adv. (prop. neut. of σφοδρός, excessive, violent) [in LXX chiefly for מְאֹד;] very, very much, exceedingly: with verbs, Mat.17:6, 23 18:31 19:25 26:22 27:54, Act.6:7; with adjectives, Mat.2:10, Mrk.16:4, Luk.18:23, Rev.16:21. (AS)
Definition:
of uncertain derivation) as adverb; vehemently, i.e. in a high degree, much; exceeding(-ly), greatly, sore, very; neuter plural of (violent;