Mid 18th century; earliest use found in Nathan Bailey (d. 1742), lexicographer and schoolmaster. From classical Latin nimbōsus full of clouds, stormy, rainy from nimbus + -ōsus.
Definition of nimbose in US English:
nimbose
adjectiveˈnɪmbəʊz
Stormy; cloudy.
Origin
Mid 18th century; earliest use found in Nathan Bailey (d. 1742), lexicographer and schoolmaster. From classical Latin nimbōsus full of clouds, stormy, rainy from nimbus + -ōsus.