The Great Hall rang with applause as the Sorting Hat finished. "That's not the song it sang when it Sorted us," said Harry, clapping along with everyone else. (p.178)
Harry looked away, staring very hard at the Sorting Hat, now Sorting Emma Dobbs. (p.179)
Harry Potter and the Goblet of Fire
In Harry Potter, there's this Sorting Hat that determines which of the four school Houses each new student belongs most to.
I understand why the Sorting Hat is capitalized, since it's a proper noun which is a creation of the author (just like how Muggles or Quidditch is capitalized.)
But why does this verb, sort, which is used as the exact same meaning as we all know(it doesn't have any special meaning other than the dictionary definition), written in capital letters? I brought only two examples, but in Harry Potter, the Sorting Hat's sortings are all written in capital letters.
Why is that? What is this? I know this is not an important question but I'm just curious..