DictionaryRoot: tranquil
English
tranquil
calm, quiet
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noun
tranquilizer
TRANG-kwuh-lye-zer/ˈtræŋkwəˌlaɪzər/
A drug that calms a person or animal.
Etymology
A tranquilizer is literally someone or something that makes calm. The word narrowed from this general calming role to a sedative substance and then to anti-anxiety drugs.