from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To fall from an upright or standing position to a horizontal or prone position.
- v. Of an argument, to fail to be valid.
- v. Of a computer program or system, to crash.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. fall forward and down
Sorry, no etymologies found.