nervine


From The Collaborative International Dictionary of English v.0.48:

nervine \nerv"ine\ (n[~e]rv"[i^]n; 277) a. [L. nervinus made of
   sinews: cf.F. nervin. See Nerve.] (Med.)
   Having the quality of acting upon or affecting the nerves;
   quieting nervous excitement. -- n. A nervine agent.
   [1913 Webster]
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