Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
ē-nervis, e, adj. [nervus], nerveless, enervated, weak, effeminate (rare and postAug., for enervatus; cf. enervo): corpus, Petr. poët. 119, 25: homo, Sen. Thyest. 176: compositio (with effeminata), Quint. 9, 4, 142; cf. orator (with solutus), Tac. Or. 18 fin.: et fluxum spectaculum, Plin. Pan. 33, 1; Val. Max. 6, 4, 2; 8, 8 init. al.
Adv.: enervĭter, weakly: blandus, August. cont. Faust. 22, 50.