devitalize

verb

1. (figuratively, transitive)To deprive of vitality; to make lifeless; to weaken.

   “Near-synonym: deanimate”

   “Noncrushing surgical clamps avoid devitalizing the cells of arterial walls.”

   “Economic stress has devitalized some shopping malls in the web era.”

   “Not so long ago a Scotsman is reported to have exhumed the body of his daughter and burnt her heart, as he thought she was devitalising her remaining brother and sister and making them ill.”