bloodying
blood-y-ing
verb
The act of causing an injury that draws blood, or staining something with blood.
"He was bloodying his knuckles on the wall."
Thesaurus
Synonyms: bloodstained, homicidal, bloody-minded, bloodsucking, slaughterous, blood-filled, violent, bloody, red, crimson, bloodthirsty, gory
Antonyms: bloodless