late 15c., "recovery or regaining of things, recovery as of something lost" (a sense now obsolete), from Latin recuperationem (nominative recuperatio) "a getting back, regaining, recovery," noun of action from past-participle stem of recuperare "get back, regain, get again," in Medieval Latin "revive, convalesce, recover," which is related to or a variant of recipere  "to hold, contain" (see receive). Meaning "restoration to health or vigor" is from 1865.

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syncopate cymatics