The author presents not only a review of the research done into the specialist languages employed within the field of economics but also attempts to provide a theoretical foundation of the subject in the framework of a comprehensive language model. The emphasis is placed on the historical evolution of the academic language employed in the discussion of economics as a science. In theoretical texts from the 16th to the 20th century, the term Geld (money) is discussed both in terms of its conceptual development and the metaphors drawn upon to talk about the concept. It transpires that the Geld concept underwent major changes in the course of its history, whereas there is little change of any moment to be observed in the metaphors pressed into service to talk about money and to constitute Geld as an abstract theoretical concept.