• synonyms

ab initio

[ahb i-nit-ee-oh; English ab i-nish-ee-oh]
adverb Latin.
  1. from the beginning.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for ab initio

Historical Examples

  • The response now obtained was vigorous and was ab-initio positive.

    Life Movements in Plants, Volume II, 1919

    Sir Jagadis Chunder Bose

British Dictionary definitions for ab initio

ab initio

  1. from the start; from scratchab initio courses
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for ab initio

c.1600, Latin, literally "from the beginning," from oblique case of initium "entrance, beginning," related to verb inire "to go into, enter upon, begin" (see initial).

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Online Etymology Dictionary, © 2010 Douglas Harper