n.1.A caster of accounts; a reckoner; a bookkeeper; - used contemptuously.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Iago's epithets for Cassio--"debitor and creditor," "countercaster"--seem strange in the context of the debate between martial "theorike" and "practike." Cassio has, as Jorgensen notes, probably been reading books similar to Stratioticos.