| Autor | author literator |
| Autorin | author writer |
| auto- | self- auto- |
| Auto | car motor car auto order resolution writ |
| Autoerotik | autoerotism |
| Autoradio | car radio automobile radio |
| Autorität | authority |
| autoritär | authoritarian |
| Tutor | monitor |
| Aktor | actuator |
| Autocar | bus |
| Autocue | autocue |
| Autoreifen | tire tyre |
| Autorennen | motor race |
| Autorepeat | autorepeat |
| Koautor | coauthor |
| autark | autarkic self-sufficient self-sustaining |
| lauter | honest |
| Chutor | khutor |
| Futon | futon |