The Hittite word ḫa-a-aš
Word ḫa-a-aš
IPA ḫāšš-
Meaning ashes, dust, soap
See also Proto-Indo-European: *h₃és-no- h₃és-i- ‘ash’
Old Norse: aska ‘ashes’

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’, ta-a-ru ‘wood, tree’, da-an-ku-iš ‘black, dark’, pu-ru-ut ‘soil, mud, earth, plaster’, ḫar-ki-iš ‘white, bright’, te-e-kan ‘earth’, tuḫ-ḫu-iš ‘smoke, vapor’, ut-ne-e ‘land’, al-la-an-ta-ru ‘oak’