from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Copyrighted software that is available free of charge on a trial basis, usually with the condition that users pay a fee for continued use and support.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A type of software that is distributed without payment but is limited in any combination of functionality, availability, or convenience.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. software that is available free of charge; may be distributed for evaluation with a fee requested for additional features or a manual etc.
share1 + (soft)ware.(American Heritage® Dictionary of the English Language, Fourth Edition)
From share + -ware; popularized by Bob Wallace (Wiktionary)