reckonmaster

plural reckonmasters · alternative reckon-master · alternative reckenmaster · alternative reckmaster

1. historicalrareA mathematician or arithmetician.

   For the common Logist, Reckenmaster, or Arithmeticien, in hys vsing of Numbers: of an Vnit, imagineth lesse partes: and calleth them Fractions.

   1570, John Dee, in H. Billingsley (trans.) Euclid, Elements of Geometry, Preface

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   The reckonmasters now had the opportunity to consolidate these favorable associations. Despite their novelty, the arithmetics just described could not fill all the needs of wholesale merchants, bankers, and others with extensive commercial activity.

   1960, Journal of the History of Ideas, volume 21

   The old choirboy schools still performed their service for the sons of some artisans and petty traders, and more important, the numbers of vernacular schoolteachers and reckonmasters multiplied.

   1981, Harvey J. Graff, Literacy and Social Development in the West