"When the word 'Dada' came to me [in German: 'mir begegnete'], I was called upon twice by Dionysios [Areopagita]. D.A. – D.A. (H...k [= Huelsenbeck] wrote about this mystical birth [of the new word, Dada], as did I in earlier notes)"
January 1, 1970
https://en.wikiquote.org/wiki/Richard_Huelsenbeck