envenomed
ɪnˈvɛnəm
ɛnˈvɛnəm
verb
put poison on or into; make poisonous.
the blades were envenomed with a fatal poison for which there is no antidote
poison,add poison to,spike,lace,contaminate,embitter,make bitter,sour,make rancorous,jaundice,colour,taint,anger,aggravate,antagonize