This is your link?
I hope you realize that your source, Open Democracy, is an off shoot of Open Society...a George Soros foundation.
Click on the open society link and this is what you find.
Either you are a very well uninformed individual, or you are a troll.
Okay, then here is the Von Mises Institute: http://blog.mises.org/18822/marx-was-right-about-capitalism/
Quote, “The term capitalism was introduced by anti-capitalists but not by Marx. Its most notable early appearance is in Louis Blancs Organisation du Travail (1840), published while Marx was still a grad student in Berlin.”
Oh, by the way, you earlier claimed that Wikipedia didn’t say that the word’s modern sense was originated by communists. You’re wrong. Wiki states, “The initial usage of the term capitalism in its modern sense has been attributed to Louis Blanc in 1850 and Pierre-Joseph Proudhon in 1861.”