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Webster 1913 Edition

(-?r)

Noun.

A caster of accounts; a reckoner; a bookkeeper; – used contemptuously.

Noun.

[counter and caster.] A caster of accounts; a reckoner; a bookkeeper, in contempt.

countercaster ‎(plural countercasters)

(obsolete, nonce word, derogatory) A caster of accounts; a reckoner; a bookkeeper.
(Can we find and add a quotation of Shakespeare, Othello, act 1 scene 1 to this entry?)