† principatieObs.rare. [f. L. principāt-us principate n. + -y; perh. error for principacy: see -acy 3.] = principality, principate. 1677Gale Crt. Gentiles II. iv. 187 Arche, a Prince, Principatie or Governement... Rom. 8. 38. ἀρχαὶ is taken for Principaties.