Dauphin meaning
The eldest son of the king of France from 1349 to 1830.
noun
Used as a title for such a nobleman.
noun
The heir to the French throne, usually the eldest son of the king: a title used from 1349 to 1830
noun
(allegorical): An eldest son.
noun
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Origin of dauphin
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) dolphin