Definition of mathesis in US English:

mathesis

noun

  • After M. Foucault: the science or practice of establishing a systematic order of things.

Origin

Late 15th century (in an earlier sense). From Anglo-Norman mathesis, Middle French mathesie and their etymon post-classical Latin mathesis astrology, the liberal arts, the quadrivium, the science of numbers, science, learning from ancient Greek μάθησις the action of learning from the stem of μανθάνειν to learn.