ratiocinium

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

rătĭōcĭnĭum, ii, n. [ratiocinor],

I a reckoning , computation , Col. 5, 1 fin. ; 5, 2, 6; 5, 11, 13; Cod. Th. 8, 1, 6: publica, ib. 9, 16, 2.—

II The obligation to render an account : imponere, Cod. 2, 7, 6 al.