IPA: /ˈɡrɪziəs/
KK: /ˈgrɪziəs/
Having a gray or bluish-gray color, often with a mottled appearance.
The griseous clouds signaled an approaching storm.
Griseous is derived from the word "gris" (from Old French *gris*, meaning gray) and the suffix "-eous" (meaning having the quality of). The word "griseous" refers to something that has the quality or appearance of gray.
Think of the Old French word for gray, 'gris', and remember that 'griseous' describes something that has the quality of being gray.