from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A starting point or origin.
- n. A first point in time: The terminus a quo for the Middle Ages is often considered the fall of Rome in 476.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The lower limit of dating, as of the earliest plausible date at which a fact could have occurred or a document could have been written.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. earliest limiting point
Latin terminus ā quō, limit from which.(American Heritage® Dictionary of the English Language, Fourth Edition)
Borrowing from Latin (Wiktionary)