a room in a church, usually adjoining the sanctuary, where the sacred vessels, vestments, etc. are kept; vestry
Origin of sacristyFrench sacristie ; from Ecclesiastical Medieval Latin sacristia ; from sacrista, sacristan ; from Classical Latin sacer, sacred
A room in a church housing the sacred vessels and vestments; a vestry.
Origin of sacristyMiddle English sacristie, from Anglo-Norman, from Medieval Latin sacristia, from sacrista, sacristan; see sacristan.
From Latin sacristia