IshNum 90:11 :ܗܕܐ ܕܝܢ ܕܡܫܟܢܙܒܢܐ܃ ܥܪܦܠܢܝܬܐ ܗܝ ܘܕܡܝܐ ܠܩܛܡܐ‏ : (the cloud that covered) the Tent of Meeting was a foggy one, like ash
See the entire entry for ˁarpellānāy adj. cloudy, foggy