Windows
Hold Alt and type 7782 on the numeric keypad.
Accents
Copy the character, or use the shortcut that matches your keyboard and app.
All S accentsHold Alt and type 7782 on the numeric keypad.
Character Viewer → s caron dot above
Type 1E66 then Alt + X
Insert → Special characters → S caron dot above
Click the keycap, then paste with Ctrl+V or Cmd+V.
Num Lock on, hold Alt, type 7782, release Alt.
Use the Unicode, HTML, CSS, or JS value below in documents and stylesheets.
U+1E66ṦṦ\1E66\u{1E66}Alt + 7782