A grim is a haunting spirit. In adjective form the word means dreary or gloomy, but its Old English definition of fierce, cruel, or savage denoted a harsher tone. In my Wytchfae series, the Grims are ghosts that did not move on to an afterlife. Instead, they hung around earth too long, becoming unmoored from their memories and higher spiritual selves. As a result the memories of others is their delectable and ghoulish food. Author Mae Clair has a Mythical Monday category, as I do, and wrote a fascinating post about church grims, the big black spectral dogs that guard graveyards. Take a peek here.