SINE QUA NON


Meaning of SINE QUA NON in English

/ ˌsɪneɪ kwɑː ˈnəʊn; NAmE ˈnoʊn/ noun

[ sing. ] sine qua non (of / for sth) (from Latin , formal ) something that is essential before you can achieve sth else

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WORD ORIGIN

Latin , literally (cause) without which not .

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.