grim
grim \'grim\ aj or grim.mer; or grim.mest [ME, fr. OE grimm; akin to OHG grimm fierce, Gk chromados act]ion of gnashing 1: SAVAGE, FIERCE 2a: of harsh and forbidding aspect 2b: ghastly, repellent, or sinister in character - grim.ly av
grim \'grim\ aj or grim.mer; or grim.mest [ME, fr. OE grimm; akin to OHG grimm fierce, Gk chromados act]ion of gnashing 1: SAVAGE, FIERCE 2a: of harsh and forbidding aspect 2b: ghastly, repellent, or sinister in character - grim.ly av