Pasta alla gricia
Pasta alla gricia is a pasta dish originating in the Lazio region of Italy. According to one hypothesis, the name of the dish derives from the Romanesco word gricio. In papal Rome, the grici were sellers of common foods, and got this name because many of them came from Valtellina, at that time possession of the Swiss canton of Grigioni. Pasta alla gricia then would mean pasta prepared with the simple ingredients readily available at the local gricio. Another theory about the origin of this dish claims that it was invented in the hamlet Grisciano, in the region of Lazio, near Amatrice. Buccini (2007) argues that this theory is more likely correct, citing a name spaghetti anna machiciana from the 1920s, referring to the neighboring region of Le Marche. The name would've started as alla grisciana, then modified to alla gricia to fit the occupational theme of carbonara and carrettiera. It should be also noticed that in Amatrice as late as the 1960s, amatriciana sauce was prepared without tomato, therefore coinciding with gricia. Due to this reason, gricia is also named "amatriciana bianca".
Source: Wikipedia