disinvigorate

From dis- +‎ invigorate.

disinvigorate (third-person singular simple present disinvigorates, present participle disinvigorating, simple past and past participle disinvigorated)

1. (transitive) To weaken (e.g. strength or character)
   • 1844, Sydney Smith, letter to Mrs. Holland:

     I doubt whether to attribute this to old-age, and to consider it as inevitable, or to blame this soft, and warm, and disinvigorating climate.

• “disinvigorate”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.