ab initio - Wiktionary, the free dictionary


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

  • (US) IPA(key): /ˌæb ɪˈnɪʃ.i.oʊ/, /ˌæb əˈnɪt.i.oʊ/, /ˌɑb əˈnɪt.i.oʊ/

ab initio

  1. (law) From the time when a law, legal right or decree, contract, ownership interest, partnership (etc.) comes into force. [Early 17th century.][1][2][3]
  2. (sciences) Calculated from first principles, i.e. from basic laws without any further additional assumptions.
    • 1983, Monty Python, The meaning of life, at about 1h 15':
      [] 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.
  3. (of an academic course) Taken with no prior qualifications.

calculated from first principles, i.e. from basic laws without any further additional assumptions

taken with no prior qualifications

  1. ^ http://karnatakajudiciary.kar.nic.in/hcklibrary/PDF/Blacks%20Law%206th%20Edition%20-%20SecA.pdf Black's Law Dictionary, 6th Edition (1990) Ab initio: Lat. From the beginning; from the first act; from the inception. An agreement is said to be "void ab initio" if it has at no time had any legal validity. A party may be said to be a trespasser, an estate said to be good, an agreement or deed said to be void, or a marriage or act said to be unlawful, ab initio. Contrasted in this sense with ex post facto, or with postea.
  2. ^ Lesley Brown, editor-in-chief, William R. Trumble and Angus Stevenson, editors (2002), “ab initio”, in The Shorter Oxford English Dictionary on Historical Principles, 5th edition, Oxford, New York, N.Y.: Oxford University Press, →ISBN, page 4.
  3. ^ Black's Law Dictionary

Borrowed from Latin ab initiō (from the beginning).

  • IPA(key): /ap iˈniːt͡si̯o/
  • Hyphenation: ab ini‧tio

ab initio

  1. ab initio

ab initio

  1. ab initio