2. Elevate, enhance, exalt, heighten mean to raise or make higher in some respect. To elevate is to raise something up to a higher level, position, or state: to elevate the living standards of a group. To enhance is to add to the attractions or desirability of something: Landscaping enhances the beauty of the grounds. To exalt is to raise very high in rank, character, estimation, mood, etc.: A king is exalted above his subjects. To heighten is to increase the strength or intensity: to heighten one's powers of concentration.

Did you mean enervating?