PRISCIL'LIANIST, noun In church history, one of a sect so denominated from Priscillian, a Spaniard, bishop of Avila, who practiced magic, maintained the errors of the Manichees, and held it to be lawful to make false oaths in the support of one's cause and interest.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI