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US /pləˈsi.boʊ/ UK /pləˈsiː.bəʊ/
Freq #27412

Meanings

  1. 1
  2. 2

Thesaurus

Word family
Derived forms antiplacebononplaceboplacebicplacebo-controlledplacebogenicplacebolikeplacebologyplacebome
Related forms drugnocebo

Appears in

Simplified etymology

Placebo is Latin for “I shall be acceptable or pleasing.” By the late 18th century, doctors used the term for a treatment given chiefly to satisfy a patient; it later came to denote an inactive substance used as a comparison in medical research.

Etymology

Inherited from Middle English placebo, borrowed from Latin placēbō (“I will please”), the first-person singular future active indicative of placeō (“to please”).

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