aut-
1.
variant of
auto-
1.
before a vowel:
autacoid.
British Dictionary definitions for
aut-
aut-
combining form
1.
a variant of
auto-
auto-
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
Word Origin
from Greek
autos
self