1590s, "of or pertaining to Scholastic theologians" (Churchmen in the Middle Ages whose theology and philosophy was based on Church Fathers and Aristotle), from French scholastique (14c.), from Latin scholasticus "of a school," from Greek skholastikos "enjoying leisure; devoting one's leisure to learning," hence, as a noun, "a scholar," also in a bad sense, "a pedant; a simpleton," from skhola (see school (n.1)). In English, meaning "pertaining to schools or to school education" is from 1640s. As a noun from 1640s. Related: Scholastical (1530s in the "relating to a school" sense); scholastically.
word-forming element making nouns implying a practice, system, doctrine, etc., from French -isme or directly from Latin -isma, -ismus (source also of Italian, Spanish -ismo, Dutch, German -ismus), from Greek -ismos, noun ending signifying the practice or teaching of a thing, from the stem of verbs in -izein, a verb-forming element denoting the doing of the noun or adjective to which it is attached. For distinction of use, see -ity. The related Greek suffix -isma(t)- affects some forms.
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Definitions of Scholasticism from WordNet
orthodoxy of a scholastic variety;
Synonyms: academicism / academism
the system of philosophy dominant in medieval Europe; based on Aristotle and the Church Fathers;