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START / NODE 429Present-Day English14th century–today

calculator

A person or device that calculates, inherited from a medieval human-reckoner word and the Latin counting-pebble family.

“A calculator was a person before it was a device. The medieval word named someone who counted or computed; the electronic machine inherited the human agent's title.”
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01
PARENT ROUTES1 REVIEWED RELATIONSHIP
EDGE 396INHERITANCEESTABLISHED
SOUND CHANGE
Middle English calkelatour loses unstressed material and stabilizes with the learned agent ending -or as calculator.
SEMANTIC CHANGE
The human reckoner sense survives while the agent label later transfers to mechanical and electronic calculating devices.
SCHOLAR
Merriam-Webster editors
CONFIDENCE
established
CHRONOLOGY
The word is reported from the 14th century; the source does not assign one first date to the machine sense.
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