πραγματεία

Etymology
From.

Noun

 * 1) prosecution of business, diligent study
 * 2) occupation, business, duty
 * 3) treatment of a subject
 * 4) philosophical argument or treatise
 * 5) systematic or scientific historical treatise
 * 6) magical operation, spell, charm

Noun

 * 1) treatise, discourse, dissertation