Retriever
来自Big Physics
early 20th century: named after the Labrador Peninsula, where the breed was developed. The name Labrador dog had been applied in the 19th century to a much larger breed, similar to the Newfoundland.
wiktionary
retrieve + -er
etymonline
retriever (n.)
late 15c., "dog used to set up game again," agent noun from retrieve (v.). As "one of a breed specially suited to search for and fetch dead or wounded game" is by 1830.
