dale (n.) Look up dale at Dictionary.com
Old English dæl "dale, valley, gorge," from Proto-Germanic *dalan "valley" (source also of Old Saxon, Dutch, Gothic dal, Old Norse dalr, Old High German tal, German Tal "valley"), from PIE *dhel- "a hollow" (source also of Old Church Slavonic dolu "pit," Russian dol "valley"). Preserved by Norse influence in north of England.