1887, Thomas Carlyle, Sartor resartus:I too could now say to myself: Be no longer a Chaos, 'but a World, or even Worldkin. Produce! Produce! ...'
1900, Philip Gengembre Hubert, The Atlantic monthly:How in this humdrum worldkin of ours did mortal men ever come to do this madness?
1979, Ralph Waldo Emerson, Alfred Riggs Ferguson, Jean Ferguson Carr, Essays, first series:"Our little worldkin is very quiet & nothing is new therein. ..."