Strong's G2690 — καταστρέφω (verb)
katastrepho (kat-as-tref'-o) v.
1. to turn upside down, i.e. upset
[from G2596 and G4762]
KJV: overthrow 
Root(s): G2596, G4762 
Hebrew root: στρέφω
Occurrences: 2