KO
anesthetize
bedaze
benumb
besot
blunt
chloroform
coldcock
deaden
dope
drug
dull
etherize
freeze
hebetate
kayo
knock out
knock senseless
knock stiff
knock unconscious
lay out
mull
narcotize
numb
obtund
palsy
paralyze
put to sleep
stun
stupefy
sensitize
alter
change
modify
desensitized
desensitizes
desensitizing