IPA: /sæˈsɜːrdətəl/
KK: /sæˈsɜr.də.təl/
Relating to priests or the duties and functions of a priest.
The ceremony had a sacerdotal significance, emphasizing the role of the priest.
Sacerdotal is formed from "sacerdos" (meaning priest) and the suffix "-al" (meaning pertaining to). The word refers to anything related to the priesthood or the duties of a priest.
Think of 'sacerdos' which means priest, and remember that 'sacerdotal' pertains to the role and responsibilities of a priest.