from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Sports A fault against the server, as in tennis, called for failure to keep both feet behind the base line.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A fault where the server's foot is placed within the court or on the wrong half of the baseline, prior to the ball being hit, resulting in a foul serve.
Sorry, no etymologies found.