nicht wahr
/nɪxt ˈvɑː/ /nɪkt ˈvɑː/noun
In interrogative contexts (especially amongst German-speakers): ‘Is it not true?’; ‘Isn't that so?’ Compare n'est-ce pas.
Origin
Late 19th century; earliest use found in Appletons' Journal. From German nicht wahr ‘is it not?’, ‘isn't it?’ from nicht not + wahr true.