Where does “sacristan” come from?

sacristan (Chavacano) comes from Spanish sacristán, from Medieval Latin sacristanus, from Late Latin sacrista, from Latin sacer, from Proto-Indo-European sh₂krós, from Proto-Indo-European seh₂k- — sacred.

sacristan (Chavacano): sacristan; altar boy; acolyte

Definitions

sacristan; altar boy; acolyte

Ancestry of “sacristan”, step by step

Step	Language	Word	Meaning
1	Spanish	sacristán	sexton; sacristan
2	Medieval Latin	sacristanus	—
3	Late Latin	sacrista	sexton; sacristan, vestryman
4	Latin	sacer	sacred, holy, dedicated (to a divinity), consecrated, hallowed
5	Proto-Indo-European	sh₂krós	sacred
6	Proto-Indo-European	seh₂k-	sacred

Every word from Proto-Indo-European seh₂k- →Every word from Proto-Indo-European sh₂krós →Every word from Latin sacer →