Noah Webster
Magisterial
MAGISTE'RIAL, adjective [See Magistrate.] Pertaining to a master; such as suits a master; authoritative.
1. Proud; lofty; arrogant; imperious; domineering.
Pretenses go a great way with men that take fair words and magisterial looks for current payment.
2. In chimistry, pertaining to magistery, which see.