DictionaryRoot: sedare
Latin
sedare
to settle, make calm
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noun
sedation
sih-DAY-shun/sɪˈdeɪʃn/
The use or effect of medication to produce calm or reduced consciousness.
Etymology
The pieces express the process of making calm. Earlier uses included alleviating pain and quieting; the selected medical sense applies that calming process to the effects of a drug.