The Dictionary of Obscure Sorrows is a website and YouTube channel, created by John Koenig, that defines neologisms for emotions that do not have a descriptive term。 The dictionary includes verbal entries on the website with paragraph-length descriptions and videos on YouTube for individual entries。 The neologisms, while completely created by Koenig, are based on his research on etymologies and meanings of used prefixes, suffixes, and word roots。 The terms are often based on "feelings of existentialism" and are meant to "fill a hole in the language", often from reader contributions of specific emotions。