Tiffany Watt Smith’s encyclopedia collects the feelings that are already named somewhere else. Abhiman, in Sanskrit: the specific pain of being hurt by someone you love, sorrow braided with bruised pride. Amae, in Japanese: surrendering into someone’s arms to be looked after. Żal, in Polish: melancholy at an irretrievable loss, wavering between resignation and rebellion. Having the word turns out to be most of the work.