I’m half-convinced that many Germans regard it as a point of national pride to have words for every conceivable emotion, and every time anyone anywhere asks “is there a word for [obscure emotional state]?”, the entire nation of Germany collectively invents one, edits their dictionaries so that it’s retroactively always existed, and says “yes, yes there is”.
You look up the Dictionary of Obscure Sorrows online, print out every page, and read a few definitions aloud in the Hawkes Hall lending library after dark, to no one in particular. After a while a silent, silent boy shows up, points to the papers with one gauze-wrapped hand, and asks, "May I have these?" It's regular old talking but it doesn't break the sense that he is silent in some fundamental sense. You smile, because you were expecting this, and say, "For a price."