Enervate
Enervate , transitive verb
[Latin enervatus, past participle of enervare, from enervis nerveless, weak; e out + nervus nerve. See Nerve.]
To deprive of nerve, force, strength, or courage; to render feeble or impotent; to make effeminate; to impair the moral powers of.
A man... enervated by licentiousness.
And rhyme began t' enervate poetry.
Enervate , adjective
[Latin enervatus, p. p.]
Weakened; weak; without strength of force. — Pope