dérapage

Source

"the French scholarly term for the moment when the Declaration of the Rights of Man collapsed into the Terror."

     Mark Bauerlein, citing Richard Bernstein's Dictatorship of virtue:  multiculturalism and the battle for America's future (New York:  Knopf, 1994), in "Hate signs," First things no. 286 (October 2018):  71 (72-71).  Skid(ding), sideslip(ping), slippage, rasp(ing of metal on metal, presumably in conjunction with such a slide), deterioration.  Inflationary spiral:  le dérapage des prix.