enervate
verb (used with object)
to deprive of force or strength; destroy the vigor of; weaken.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The one would have been enervating to me, and the other would have been a definite addition to Clarence’s stock of horrors.
From Chantry House by Charlotte Mary Yonge