sac ‧ ris ‧ tan /ˈsækrəstən, ˈsækrɪstən/ BrE AmE noun [countable]
[ Date: 1300-1400 ; Language: Medieval Latin ; Origin: sacristanus , from sacrista 'sacristan' , from Latin sacer ; ⇨ ↑ sacred ]
someone whose job is to take care of the holy objects in a church