terrier (n.)youdaoicibaDictYouDict[terrier 词源字典]
kind of dog, early 15c., from Old French chien terrier "terrier dog," literally "earth dog," from Medieval Latin terrarius "of earth," from Latin terra "earth" (see terrain). So called because the dogs pursue their quarry (foxes, badgers, etc.) into their burrows.[terrier etymology, terrier origin, 英语词源]