From Ye Olde OED:

{dag}1. Public welfare; general good or advantage. Obs. in ordinary use: see COMMON-WEAL.

2. The whole body of people constituting a nation or state, the body politic; a state, an independent community, esp. viewed as a body in which the whole people have a voice or an interest.

3. a. A state in which the supreme power is vested in the people; a republic or democratic state.

I’m most interested because of the IWW reference to the co-operative commonwealth. The double meaning here is not lost on me, the good one that I like and the state-like/logic-of-sovereignty one that I don’t. (This occurs in Marx’s discussion of the working class in the 1844 manuscripts and in a different sense in the operaisti need for a hegemonic class figure.)

Should eventually also review Virno and Negri on this category in relation to the multitude, and in Hobbes and Spinoza.