adulterate
brutalize
contaminate
corrupt
cut
debase
debauch
demoralize
denaturalize
denature
deprave
dilute
doctor
doctor up
fortify
lace
mongrelize
pervert
pollute
spike
tamper with
vitiate
warp
water
water down
adjudge
declare
demoralise
hold
misdirect
profane
subvert
bastardized
bastardizes
bastardizing