1. Being or involving the driver of a motor vehicle who leaves the scene of an accident, especially one in which a pedestrian or another vehicle has been struck.
2. Baseball Relating to or being a play in which a base runner starts to run on the pitch and the batter attempts to hit the ball to protect the runner.
3. Involving or designed for swift specific action or effect: "a day of hit-and-run disturbances by bands of dissident students" (Alfonso Narvaez).
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.