Jesuats; Apostolic Clerics of Saint Jerome
Religious congregation of men founded 1361 at Siena, Italy, by Saint John Colombini, for the care of the sick, particularly the plague-stricken, the burial of the dead, prayer, and strict mortification.
The name was popularly given them because of their constant use of the words: "Praise be to Jesus."
At first they followed the rule of Saint Benedict, with some modifications, but later they adopted the rule of Saint Augustine.
Colombini died about a week after the foundation of his society.
Under his successors Francesco Mini and Blessed Jerome Dasciano, the congregation spread rapidly throughout, Italy.
Abuses crept in, however, and the Jesuats were suppressed 1668, by Pope Clement IX.
New Catholic Dictionary