n.
Pronunciation: ' sa ŋ (k)-t ə s; ' sä ŋ (k)-t ə s, - ˌ tüs
Function: noun
Etymology: Middle English, from Late Latin Sanctus, sanctus, sanctus Holy, holy, holy, opening of a hymn sung by the angels in Isa 6:3
Date: 15th century
: an ancient Christian hymn of adoration sung or said immediately before the prayer of consecration in traditional liturgies