| 单词 | somnifacient |
| 释义 | somnifacient in British English (ˌsɒmnɪˈfeɪʃənt) medicine noun 1. a sleep-inducer adjective 2. inducing sleep somnifacient in American English (ˌsɑmnəˈfeiʃənt) adjective 1. causing or inducing sleep noun 2. a drug or other agent that induces or tends to induce sleep Word origin [1885–90; ‹ L somn(us) sleep + -i- -i- + -facient]This word is first recorded in the period 1885–90. Other words that entered Englishat around the same time include: classified, reactor, seminar, toner, upsweep-i- is the typical ending of the first element of compounds of Latin words, as -o- is of Greek words, but often used in English with a first element of any origin,if the second element is of Latin origin. Other words that use the affix -i- include: Frenchify, cuneiform |
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