Abbott-Smith Manual Greek Lexicon
κατα-φθείρω (G2704)
1 κατα-φθείρω , [in LXX chiefly for שׁחת hi., Ge 6:12 , al.;] to destroy entirely . In moral sense (as LXX), to deprave , corrupt : pass. pf. ptcp., seq. τ. νοῦν , II Ti 3:8 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain