My impression is that German prefixes don't have such well-defined meanings that a new word created with one automatically has an unambiguous definition relativ

My impression is that German prefixes don't have such well-defined meanings that a new word created with one automatically has an unambiguous definition relative to the base word. There seem to be parallels with raz- but I'm not sure if they have a common root. https://en.wiktionary.org/wiki/Reconstruction:Proto-Indo-European/dw%C3%ADs https://en.wiktionary.org/wiki/Reconstruction:Proto-Indo-Eur... https://en.wiktionary.org/wiki/Reconstruction:Proto-Slavic/orz- https://en.wiktionary.org/wiki/Reconstruction:Proto-Slavic/o...