What does the word twain mean?

Usage examples for twain

  1. You may take your choice, like the story Mark Twain wrote, with all kinds of weather at the beginning, so the reader could take his pick. – The Window at the White Cat by Mary Roberts Rinehart
  2. Yes, we have Mark Twain. – Abroad with the Jimmies by Lilian Bell
  3. There the talk falls down between them, and they rise in the morn, they twain, And bright- faced wend through the dwelling of the Niblungs' glory and gain. – The Story of Sigurd the Volsung and the Fall of the Niblungs by William Morris