Somniferous
Nuttall's Standard Dictionary of the English Language · 1890 · p. 168
som-nif'-er-us, a. causing or inducing sleep (L. somnus and fero, to bring).
Bu kavram başka kaynaklarda da geçiyor
Stedman's Medical Dictionary: A Practical Medical Dictionary (1920)
The American Illustrated Medical Dictionary (1913)
Chamber's Twientieth Century Dictionary (1908)
Readham'da tam maddeyi gor →