Sheltie (n.)youdaoicibaDictYouDict[Sheltie 词源字典]
"small pony," 1640s, "Shetland pony," from Shelty, abbreviation of Sheltand, metathesis of Shetland. Or the word may represent the Orkney pronunciation of Old Norse Hjalti "Shetlander."[Sheltie etymology, Sheltie origin, 英语词源]