α. 1800s– sitzfleisch, 1900s– sitsfleisch, 1900s– sitsfleish, 1900s– sitzfleish.
β. 1900s– zitsflaish, 1900s– zitsflaysh, 1900s– zitsfleisch, 1900s– zitsfleish, 1900s– zitsfleysh, 1900s– zitzflaish, 1900s– zitzfleisch, 1900s– zitzfleish, 1900s– zitzfleysh.
Also with capital initial.