ab initio
adverb/ˌæb ɪˈnɪʃiəʊ/
/ˌæb ɪˈnɪʃiəʊ/
(from Latin, law or formal)- from the beginning
- The agreement was declared void ab initio.
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ab initio
Definition of ab initio adverb from the Oxford Advanced Learner's Dictionary