Who came up with the term Anarchism?

The term "anarchism" is believed to have been popularized by the French philosopher Pierre-Joseph Proudhon in the mid-19th century. Proudhon used the term in his 1840 work "What is Property?" to describe a political philosophy advocating for a society without hierarchical authority. However, the roots of anarchist thought can be traced back to earlier thinkers, including William Godwin and Max Stirner.