v. Obs. Pa. pple. -at. [f. L. commerciā-ri to trade: see -ATE.] intr. To hold intercourse, associate with.
1740. Cheyne, Regimen, 42. Nothing impure can return to live and commerciate with, or be united to God perfectly. Ibid., 322. To be united and commerciat eternally with infinit purity and Perfection.