Merriam-Webster Collegiate Dictionary - stour

 I. adjective  Etymology: Middle English stor, from Old English stor; akin to Old High German stuori large, Russian staryi old, Old English standan to stand  Date: before 12th century  1. chiefly Scottish strong, hardy  2. chiefly Scottish stern, harsh  II. noun  Etymology: Middle English, from Anglo-French estur, e~, of Germanic origin; akin to Old High German sturm storm, battle — more at storm  Date: 14th century  1.  a. archaic battle, conflict  b. dialect British tumult, uproar  2. chiefly Scottish dust, powder STOUR  geographical name  1. river 47 miles (76 kilometers) SE England flowing E between Essex & Suffolk into the North Sea  2. river 55 miles (88 kilometers) S England in Dorset & Hampshire flowing SE into Avon River  3. (or Great ~) river 40 miles (64 kilometers) SE England in Kent flowing NE into the North Sea  4. river 20 miles (32 kilometers) central England in Oxfordshire & Warwickshire flowing NW into Avon River  5. river 20 miles (32 kilometers) W central England flowing S into Severn River