-ēəm noun
( plural quadriv·ia -ēə)
Etymology: Late Latin, from Latin, crossroads, place where four roads meet, from quadri- + via way, road — more at via
: a group of studies in the Middle Ages consisting of arithmetic, music, geometry, and astronomy, constituting the higher division of the seven liberal arts, and forming the course for the three years of study between the B.A. and M.A. degrees — compare trivium