| auto- or (sometimes before a vowel) aut- | |
| —combining form | |
| 1. | self; same; of or by the same one: autobiography |
| 2. | acting from or occurring within; self-caused: autohypnosis |
| 3. | self-propelling; automatic: automobile |
| [from Greek autos self] | |
| aut- or (sometimes before a vowel) aut- | |
| —combining form | |
| [from Greek autos self] | |