Definition of "Deaden" :
verb: convert (metallic mercury) into a grey powder consisting of minute globules, as by shaking with chalk or fatty oil
verb: make less lively, intense, or vigorous; impair in vigor, force, activity, or sensation
"Deaden a sound."
verb: become lifeless, less lively, intense, or active; lose life, force, or vigor
verb: make vague or obscure or make (an image) less visible
verb: lessen the momentum or velocity of
"Deaden a ship's headway."
verb: make vapid or deprive of spirit
"Deadened wine."
verb: cut a girdle around so as to kill by interrupting the circulation of water and nutrients