Placebo
Pronunciation : Pla*ce"bo
Part of Speech : n.
Etymology : [L., I shall please, fut. of placere to please.]
Definition : 1. (R. C. Ch.)
Defn: The first antiphon of the vespers for the dead.
2. (Med.)
Defn: A prescription intended to humor or satisfy. To sing placebo, to agree with one in his opinion; to be complaisant to. Chaucer.
Source : Webster's Unabridged Dictionary, 1913