Dissie is of Scottish origin, derived from the medieval female given name Disdera or Dister. It was quite popular during the Middle Ages but has since become less common. The name Dissie is often associated with the historical figure Disdero, a 12th-century Scottish queen who was known for her beauty and courage.
Dissie is quite rare as it's only been given to 11 babies over two decades, with no other years showing any instances of this name. It had its most popular period between 1901 and 1923, but even then it was not particularly common, with only six births in the former year and five in the latter.