In addition to "the quick and the dead", it also appears in the idiom "(cut) to the quick", meaning to cut someone deeply - usually emotionally. https://en.wik

In addition to "the quick and the dead", it also appears in the idiom "(cut) to the quick", meaning to cut someone deeply - usually emotionally. https://en.wiktionary.org/wiki/cut_to_the_quick https://en.wiktionary.org/wiki/cut_to_the_quick https://en.wiktionary.org/wiki/to_the_quick https://en.wiktionary.org/wiki/to_the_quick Take it back further, and it's cognate with bíos in ancient Greek, whence the prefix bio-.