Strong's G2704 — καταφθείρω (verb)
kataphtheiro (kat-af-thei'-ro) v.
1. to spoil entirely
2. (literally) to destroy
3. (figuratively) to deprave
[from G2596 and G5351]
KJV: corrupt, utterly perish 
Root(s): G2596, G5351 
Hebrew root: φθείρω
Occurrences: 1