Urtext Scores are scores with "musical text which reflects the composer’s intentions. The text is undistorted, meaning that neither the editor nor the publishing house have undertaken changes that might misrepresent it".
“What Is Urtext?” What is Urtext? / G. Henle Verlag. Accessed November 1, 2021. https://www.henle.de/us/about-us/what-is-urtext/.