Definition of "auto-" []

• Self; same: autogamy. (prefix)
• Automatic: autopilot. (prefix)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "But the shareholding has weighed on Daimler earnings in recent years, including a €261 million hit to its 2010 profit, and the company officials have signaled the stake isn't core to its main auto- and truck-making activities."
• "We will read the biographies of famous people, do a report on a famous person of your choosing, and each of you will also write your own auto- biography."
• "These include prefixes, such as pre- or auto-, and suffixes, such as -ing, -tion, and -ism, that are meaningless on their own."