Word Origin & History
lazaretto
1549, "house for reception of lepers and diseased poor persons," from It. lazareto "place set aside for performance of quarantine" (especially that of Venice, which received many ships from plague-infested districts in the East), from the Biblical proper name Lazarus (Luke xvi.20), which was extended in medieval usage to "any poor and visibly diseased person" (cf. Eng. lazar, 1340, "one deformed and nauseous with filthy and pestilential diseases" [Johnson]). Meaning "building set apart for quarantine" is 1605 in Eng. The name Lazarus is from a Gk. rendition of Heb. El'azar, lit. "God has helped."