#2704 καταφθείρω kataphtheiro {kat-af-thi'-ro}

 from G2596 and G5351; TDNT - 9:93,1259; v

—Greek Word Study (Transliteration-Pronunciation Etymology & Grammar)

 1) to corrupt, deprave
    1a) corrupted in mind
 2) to destroy
    2a) to be destroyed, to perish

—Thayer's (New Testament Greek-English Lexicon)

—Strong's (Greek Dictionary of the New Testament)

—NAS Exhaustive Concordance of the Bible with Hebrew-Aramaic and Greek Dictionaries

 AV - corrupt 1, utterly perish 1; 2

—Exhaustive Concordance (KJV Translation Frequency & Location)