The Basque/Euskara word [h]auts
Word [h]auts
Meaning dust, powder, ashes

Other words that might be of interest
argi ‘bright’, bel ‘dark’, iLun ‘darkness’, lur ‘earth’, su ‘fire’, gar ‘flame’, bendi ‘mountain’, [h]aritz ‘oak’, zeLai ‘plain’, eke ‘smoke’, [h]aRi ‘stone’, zur ‘wood’