Editing context menus

I know this is kind of dumb, but I want to know how to edit my context menus so instead of paste it says pasta.  Anybody know how to do this? thanks

500000 hours in hexeditor

>>1
For Firefox, an extension will probably change it. For most other programs, you'd have to modify the source code and compile (which is no problem on Linux, but impossible on Windows unless you're using Free programs).