Dacian language was spoken a long, long time ago in a place called Dacia. Dacia is now Romania. People who spoke Dacian lived in the mountains and took care of animals like sheep and cows. They used a special way of talking to each other that sounded different than other languages around them.
Dacian language had some really cool words that were only used by the people who spoke it. For example, they had a word for "wolf" that was different than any other language at the time. They also had a way of saying things that was different than other languages. It made their language special and unique.
The Dacian people were very proud of their language and used it to talk to each other and communicate important things like where to find food or water. Unfortunately, over time, their language started to disappear. This was because people started speaking other languages and not passing down Dacian from generation to generation.
Today, Dacian language is considered a lost language because no one speaks it anymore. However, archaeologists and historians have found some old writings in Dacian that help us learn more about this ancient language.