The Order of Poor Clerics Regular of the Mother of God of the Pious Schools (Latin: Ordo Clericorum Regularium pauperum Matris Dei Scholarum Piarum, Sch. P. or S. P.) or, in short, Piarists /ˈpaɪ.ərɨsts/, is the name of the oldest Catholic educational order also known as the Scolopi, Escolapios or Poor Clerics of the Mother of God (in both cases clerics can also become clerks, from the same etymology).