Definition of institor
: a person (as the manager of a commercial or manufacturing business, a broker, factor, or commission agent) to whom the transaction of some business is committed as agent to such a degree as to bind the principal —used chiefly in Roman and civil law
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Origin and Etymology of institor
Latin, from instit- (perfect stem of insistere to occupy a place in, stand upon, persist) + -or — more at insist
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