Vine's Expository Dictionary: View Entry
TDNT Reference: 9:93,1259
φθείρω phtheírō, fthi'-ro; probably strengthened from φθίω phthíō (to pine or waste); properly, to shrivel or wither, i.e. to spoil (by any process) or (generally) to ruin (especially figuratively, by moral influences, to deprave):—corrupt (self), defile, destroy.
The KJV translates Strong's G5351 in the following manner: corrupt (4x), corrupt (one's) self (1x), be corrupt (1x), defile (1x), destroy (1x).
to corrupt, to destroy
in the opinion of the Jews, the temple was corrupted or "destroyed" when anyone defiled or in the slightest degree damaged anything in it, or if its guardians neglected their duties
to lead away a Christian church from that state of knowledge and holiness in which it ought to abide
to be destroyed, to perish
in an ethical sense, to corrupt, deprave
Strong's Number G5351 matches the Greek φθείρω (phtheirō),
which occurs 8 times in 7 verses
in the TR Greek.