TBESG:κατακλυσμόςfloodG:N-M κατα-κλυσμός, -οῦ, ὁ (< κατακλύζω), [in LXX chiefly for מַבּוּל, Gen.6:17, al.; also for שֶׁטֶף, Psa.32:6, al. ;] a flood, deluge: Refs Mat.24:38-39 Luk.17:27, 2Pe.2:5.† (AS)
κατακλύζω katakluzō kat-ak-lood'-zo From G2596 and the base of G2830; to dash (wash) down, that is, (by implication) to delugeKJV Usage: overflow.