7 letters · 11 points in Scrabble
noun an animal (such as a mule or burro or horse) used to carry loads
originFrom Middle English, from Old French sommetier (“pack-horse driver”), from Late Latin *sagmatarius, from Latin sagma, from Ancient Greek σάγμα (ságma, “pack-saddle”).
Etymology from Wiktionary, CC BY-SA 3.0