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Old English dæl "dale, valley, gorge," from Proto-Germanic *dalan "valley" (cf. Old Saxon, Dutch, Gothic dal, Old Norse dalr, Old High German tal, German Tal "valley"), from PIE *dhel- "a hollow" (cf. Old Church Slavonic dolu "pit," Russian dol "valley"). Preserved from extinction by Norse influence in north of England.
Dale (dāl), Sir Henry Hallett. 1875-1968.
British physiologist. He shared a 1936 Nobel Prize for work on the chemical transmission of nerve impulses, particularly for the isolation and study of acetylcholine (1914).