Pragmaticism is a term used by Charles Sanders Peirce for his pragmatic philosophy starting in 1905, in order to distance himself and it from pragmatism, the original name, which had been used in a manner he did not approve of in the "literary journals". Peirce in 1905 announced his coinage "pragmaticism", saying that it was "ugly enough to be safe from kidnappers" (Collected Papers (CP) 5.414). Today, outside of philosophy, "pragmatism" is often taken to refer to a compromise of aims or principles, even a ruthless search for mercenary advantage. Peirce gave other or more specific reasons for the distinction in a surviving draft letter that year and in later writings. Peirce's pragmatism, that is, pragmaticism, differed in Peirce's view from other pragmatisms by its commitments to the spirit of strict logic, the immutability of truth, the reality of infinity, and the difference between (1) actively willing to control thought, to doubt, to weigh reasons, and (2) willing not to exert the will, willing to believe. In his view his pragmatism is, strictly speaking, not itself a whole philosophy, but instead a general method for the clarification of ideas. He first publicly formulated his pragmatism as an aspect of scientific logic along with principles of statistics and modes of inference in his "Illustrations of the Logic of Science" series of articles in 1877-8.
Whether one chooses to call it "pragmatism" or "pragmaticism"—and Peirce himself was not always consistent about it even after the notorious renaming—his conception of pragmatic philosophy is based on one or another version of the so-called "pragmatic maxim". Here is one of his more emphatic statements of it:
Pragmaticism was originally enounced in the form of a maxim, as follows: Consider what effects, that might conceivably have practical bearings, you conceive the objects of your conception to have. Then, your conception of those effects is the whole of your conception of the object (CP 5.438).
In the 1909 Century Dictionary Supplement, the entry for pragmaticism, written, it now appears, by John Dewey, was
pragmaticism (prag-mat′ i-sizm), n. [pragmatic + ism.] A special and limited form of pragmatism, in which the pragmatism is restricted to the determining of the meaning of concepts (particularly of philosophic concepts) by consideration of the experimental differences in the conduct of life which would conceivably result from the affirmation or denial of the meaning in question.