auto-


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auto-

(word root) self
Examples of words with the root auto-: autobiography, autograph
Abused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary Embree

auto-

or aut-
pref.
1. Self; same: autogamy.
2. Automatic: autopilot.

[Greek, from autos, self.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

au•to

(ˈɔ toʊ)

n., pl. -tos.
an automobile.
[1895–1900, Amer.]

auto-1


,
a combining form meaning “self,” “same,”: autograph. Also, esp. before a vowel,aut-.
[< Greek, comb. form of autós self]

auto-2


,
a combining form representing automobile: automotive.

auto-3


,
a combining form representing automatic: autofocus.

auto.

1. automatic.
2. automobile.
3. automotive.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

auto-

A prefix meaning "oneself," as in autoimmune, producing antibodies or immunity against oneself. It also means "by itself, automatic," as in autonomic, governing by itself.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Translations

auto-

prefauto-, Auto-
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

auto-

(oːtəu) prefix
1. for or by oneself or itself.
2. Same as auto.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.