10 letters · 14 points in Scrabble
originEtymology tree Proto-Indo-European *tréyes Proto-Indo-European *tri- Proto-Italic *tri- Latin tri-der. English tri- Latin sulpur Latin sulfur Latin sulphur Anglo-Norman sulfrebor. Middle English sulphur English sulf(ur) Proto-Indo-European *dʰeh₁-der. Proto-Italic *-iðos Latin -idusder. English -ide English sulfide English trisulfide From tri- + sulfide.
Etymology from Wiktionary, CC BY-SA 3.0