a. Obs. rare. [f. L. ēnerv-is (see prec.) + -OUS.] Bereft of nerve and strength; powerless, futile, spiritless. (Used several times by R. North.)
1677. I. L. & S. D., Ded. to Clevelands Poems, A iiij b. We have only an enervous effeminate froth offered.
a. 1734. North, Exam., I. iii. ¶ 93 (1740), 188. After the Plot became enervous, and all farther Use of it was despaired of.