9 letters · 16 points in Scrabble
noun a mixture of potassium nitrate, charcoal, and sulfur in a 75:15:10 ratio which is used in gunnery, time fuses, and fireworks
originEtymology tree Proto-Indo-European *gʷʰen- Proto-Indo-European *-tis Proto-Indo-European *gʷʰéntis Proto-Germanic *gunþiz Old Norse gunnr Proto-Indo-European *kelh₂-der. Proto-Indo-European *kelh₂tís Proto-Germanic *hildiz Old Norse hildr Old Norse Gunnhildrder. Middle English gunne English gun English powder English gunpowder From gun + powder.
Etymology from Wiktionary, CC BY-SA 3.0