somniferous
The American Illustrated Medical Dictionary · 1913 · p. 23
(som-nif’er-us) [L. som’nus sleep + fer're to bring]. Inducing or causing sleep.
Bu kavram başka kaynaklarda da geçiyor
Stedman's Medical Dictionary: A Practical Medical Dictionary (1920)
Chamber's Twientieth Century Dictionary (1908)
Nuttall's Standard Dictionary of the English Language (1890)
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