7 letters · 10 points in Scrabble
noun a slowly moving mass of ice
originBorrowed from French glacier, from Franco-Provençal gllaciér, from Vulgar Latin *glaciārium, a derivative of Latin glaciēs (“ice”), of uncertain origin. First attested in English in 1744 per the OED.
Etymology from Wiktionary, CC BY-SA 3.0