Word.ws English Dictionary

ab initio

US/ˌæb ɪˈnɪʃ.i.oʊ/

ab initio adverb: from the time when a law, legal right or decree, contract, ownership interest, partnership (etc.) comes into force.

Adverb

ab initio

  1. From the time when a law, legal right or decree, contract, ownership interest, partnership (etc.) comes into force.
    • As the Act was passed without the required quorum, the constitutional court struck down the Act and declared it to be void ab initio
    • Any child marriage solemnised in contravention of an injunction order issued under section 13, whether interim or final, shall be void ab initio.2007, Parliament of India, “Section 14”, in Prohibition of Child Marriage Act, 2006, archived from the original on 15 Jul 2024, page 4
  2. Calculated from first principles, i.e. from basic laws without any further additional assumptions.
    • […] this soul does not exist ab initio, as orthodox Christianity teaches; it has to be brought into existence by a process of guided self-observation. However, this is rarely achieved, owing to man's unique ability to be distracted from spiritual matters by everyday trivia.1983, Monty Python, The meaning of life, at about 1h 15'
  3. Taken with no prior qualifications.

ab initio meaning in Hindi, Tamil and Malayalam

ab initio in Hindi

referring to the time from when a legal document comes into force
आदितः āditaḥ

ab initio in Tamil

ஆரம்பத்திலிருந்தே, துவக்கத்திலிருந்தே, தொடக்கத்திலிருந்தே, முதலிலிருந்து, அடி முதலே

ab initio in Malayalam

ആദ്യം മുതൽക്ക്, തുടക്കത്തിലേ

Forms of ab initio

alternative formab init

Origin of ab initio

From Latin ab (“from”) + initiō, ablative singular of initium (“beginning”).

Questions about ab initio

What does ab initio mean?
Ab initio means from the time when a law, legal right or decree, contract, ownership interest, partnership (etc.) comes into force.
What is ab initio in Hindi?
Ab initio in Hindi is आदितः (āditaḥ). See Ab initio meaning in Hindi.
What part of speech is ab initio?
Ab initio is an adverb.
How do you pronounce ab initio?
Ab initio is pronounced /ˌæb ɪˈnɪʃ.i.oʊ/ (US).

Words near ab initio in the dictionary

  1. ab cracks
  2. ab extra
  3. Ab Fab
  4. ab inconvenienti
  5. ab init
  6. ab initio
  7. ab intestato
  8. ab intra
  9. ab invito
  10. Ab Kettleby
  11. AB language

Source and license

Adapted from Wiktionary: ab initio (page history and authors); ab initio (Tamil Wiktionary) (page history and authors); ab initio (Malayalam Wiktionary) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “ab initio.” Word.ws, https://word.ws/ab_initio. Based on Wiktionary, CC BY-SA 4.0.