mensularius

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

mensŭlārĭus, ii, m. [mensula],

a money-changer (post-Aug.), Sen. Contr. 4, 24, 2; Dig. 42, 5, 24, § 2; 2, 11, 47, § 1.