from The American Heritage® Dictionary of the English Language, 4th Edition
- adv. From the beginning.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adv. Calculated from first principles, i.e. from basic laws without any further additional assumptions.
- adv. Taken with no prior qualifications.
from The Century Dictionary and Cyclopedia
- n. From the beginning.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adv. at the beginning
Latin ab initiō : ab, from + initiō, ablative of initium, beginning.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin ab ("from") + initiō, ablative singular of initium ("beginning"). (Wiktionary)