Thanks to Enowning for alerting me to this site – bilingual pdfs of some major works of German thought, including Kant, Hegel, Nietzsche, Freud, and Heidegger. An enormous amount of work here. If you want to check if it is Ursprung, Herkunft or Entstehung; Geschichte or Historie; Dasein or Da-sein this would be a helpful place to look…