English
grimmish
From grim + -ish.
Formed from grim + -ish
Proto-Germanic *grimmaz ‘grim, grimly, fierce’
Proto-West Germanic *grimm ‘grim, angry’
Old English grimm ‘fierce, savage, terrible, cruel, angry’
Middle English grim
English grim
Today it means
adj Somewhat grim.
Language periods are conventional ranges, not dates for this word.
Etymograph / grimmish