-_tə̇st noun
( -s )
Usage: usually capitalized
Etymology: Medieval Latin Donatista, from Donatus, 4th century bishop of Carthage + Latin -ista -ist
: a member of a schismatic party of Christians in No. Africa from 311 to the 7th century who held that the validity of the sacraments depends on the spiritual state of the minister, that sanctity is essential for church membership, and that all who joined their group should be rebaptized