Of or pertaining to or used for purification as lustral days lustral water
- Of or pertaining to, or used for, purification; since, lustral days; lustral liquid.
- Of or regarding a lustrum.
"pertaining to purification," 1530s, from Latin lustralis, from lustrum (see lustrum). Ergo, additionally, "every five years" (1781).
(a.) Of or regarding, or used for, purification; because, lustral times; lustral water.
- (a.) Of or regarding a lustrum.
The time requisite for the several degrees is unknown, and may have been determined by the Patres, who conferred them in a solemn ceremony called Sacramentum, in which the initial step was an oath never to divulge what should be revealed, and for which the mystic had been specially prepared by lustral purification, prolonged abstinence, and severe deprivations.