1. The eldest son of the king of France from 1349 to 1830.
2. Used as a title for such a nobleman.
[Middle English, from Old French, title of the lords of Dauphiné, from Dalphin, Dalfin, a surname, from dalfin, dolphin (from the device on the family's coat of arms); see DOLPHIN.]
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Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.