The Hittite word da-an-ku-iš
Word da-an-ku-iš
IPA dankui-
Meaning black, dark
See also Early Proto-Albanian: *džedna ‘black’
Old Norse: døkkr ‘dark’
Old Norse: dimmar ‘dark, gloomy’
C. Luwian: da-ak-ku-u-i-iš ‘dark’

Other words that might be of interest
pa-aḫ-ḫur ‘fire’, ua-ar-ša ‘fog, mist’, ḫa-aš-ša-a- ‘fireplace, hearth’, ša-mi- ‘smoke’, ḫa-a-aš ‘ashes, dust, soap’, iš-pa-an-za ‘night’, ḫar-ki-iš ‘white, bright’, tuḫ-ḫu-iš ‘smoke, vapor’