Method
Hegel (Logic) & pervasive
Not an external procedure, but the self-movement of the matter. The method is the result of the Logic --- the absolute idea as insight into the self-development of thought. "The method is the consciousness of the form of the inner self-movement of its content" (SL).
Origin
Traditionally: method as a tool (Descartes). In Hegel: method as self-organization of content.
In Hegel
Enc. §236-243; SL Vol. 2, Absolute Idea