eagleyoudaoicibaDictYouDict[eagle 词源字典]
eagle: [14] Eagle comes via Old French aigle from Latin aquila (source also of English aquiline [17]). This was presumably a derivative of the adjective aquilus ‘dark-coloured’, suggesting that the eagle’s name originally signified simply ‘dark-coloured bird’ (Greek had the term melanáetos ‘black eagle’). Before the French word was introduced, the English term for ‘eagle’ was erne, which still survives dialectally.
=> aquiline[eagle etymology, eagle origin, 英语词源]
eagle (n.)youdaoicibaDictYouDict
mid-14c., from Old French egle, from Old Provençal aigla, from Latin aquila "black eagle," fem. of aquilus, often explained as "dark colored" (bird); see aquiline. The native term was erne. Golf score sense is by 1908 (according to old golf sources, because it "soars higher" than a birdie). As the name of a U.S. $10 coin minted from 1792 to 1933, established in the 1786 resolution for a new monetary system (but at first only the desperately needed small copper coins were minted). The figurative eagle-eyed is attested from c. 1600.