In a sacerdotal manner, in the manner of a priest.
1720, Samuel Parker, Biblioteca Biblica, Oxford: William and John Innys, Volume I, Part 2, Occasional Annotation 30, “The Pillar of Jacob,” p. 608,
[…] first he Blessed the Place Sacerdotally, setting it apart by Solemn Rites for a Place of Divine Worship […]