WordPress/wp-includes/js/tinymce/plugins/wordpress/langs/en.js

// EN lang variables

tinyMCE.addToLang('',{
wordpress_more_button : 'Split post with More tag',
wordpress_page_button : 'Split post with Page tag',
wordpress_help_button : 'Help',
wordpress_more_alt : 'More...',
wordpress_page_alt : '...page...',
wordpress_help_text : 'This is the Rich Editor. It shows you approximately what your entry will look like as you type. Pasting formatted text from other editors is not recommended. One character, less-than (<), is reserved for HTML and must be represented in code: to represent "<" type "&lt;" without the quotes.\n\nThere are several hotkeys you can use instead of clicking on the toolbar. Windows and Linux use Alt+<letter>. Macintosh computers use Ctrl+<letter>.\nb: Bold\ni: Italic\ns: Strikethrough\nl: Unordered list\no: Ordered list\nq: Quote, indent list\nw: Unquote, outdent list\nf: Left align\nc: Center align\nr: Right align\na: Link\ns: Unlink\ni: Image\nt: "More" tag\nu: Undo\ny: Redo\ne: Edit HTML\nh: Help'
});