dauphin

• n. フランス王太子（1349年から1830年までこう呼ばれた）
• n. （王太子）人の名前；（仏）ドーファン

ドルフィンのフランス語表記から。もともとは「ヴィエノワの王太子」という称号で、フランスのヴィエノワ領主の紋章の3頭のイルカにちなんで名づけられた。1349年にヴィエノワの最後の領主が土地を割譲した際、この称号をフランス第一王太子が永久に継承することを条件としたため、この称号が受け継がれるようになった。

dauphin

dauphin: [15] The eldest sons of the French king were from 1349–1830 designated by a title which is essentially the same word as English dolphin. It was originally applied to the lords of the Viennois, an area in the southeast of France, whose coat of arms incorporated three dolphins. After the Viennois province of Dauphiné was sold by Charles of Valois to the French crown in 1343, the king gave it to his eldest son, and from then on all eldest sons inherited it along with the title dauphin.
=> dolphin

dauphin (n.)

"eldest son of the king of France" (title in use from 1349-1830), early 15c., from Middle French dauphin, literally "dolphin" (see dolphin).

Originally the title attached to "the Dauphin of Viennois," whose province (in the French Alps north of Provence) came to be known as Dauphiné. Three dolphins were on the coat of arms of the lords of Viennois, first worn by Guido IV (d.1142). It is said originally to have been a personal name among the lords of Viennois. Humbert III, the last lord of Dauphiné, ceded the province to Philip of Valois in 1349, on condition that the title be perpetuated by the eldest son of the king of France. The French fem. form is dauphine.

1. Daupin is sitting on the chair lazily，he is looking a letter.

皇太子チャーリーは椅子にだらだらと座って、手紙をいじっている。