puff. 1  a short, quick blast, as of wind or breath. 2  an abrupt emission of air, smoke, vapor, etc. 3  an act of inhaling and exhaling, as on a cigarette or pipe; whiff. 4  the sound of an abrupt emission of air, vapor, etc. 5  a small quantity of vapor, smoke, etc., emitted at one blast. 6  an inflated or distended part of a thing; swelling; protuberance.
The Shetland Sheepdog is related to the Rough Collie, both dogs descended from Border Collies that inhabited Scotland. The Border Collies were brought to the Scottish island of Shetland and crossed with the Icelandic Yakkin, a small island dog which is now extinct. By 1700, the Sheltie was completely developed.
The Shetland Sheepdog's early history is not well known. Although of obscure origin, the sheltie is probably a descendant of small specimens of the Scottish Collie and the King Charles Spaniel.oday it is raised as a farm dog and family pet. They were originally a small mixed-breed dog, often 10â13 inches (250â330 mm) in height and it is thought that the original Shetland herding dogs were of Spitz type, and were crossed with collie-type sheepdogs from mainland Britain.