Conlang is a noun that refers to an artificially created language.
Our word of the day came around in the 1990s. It is short for ‘constructed language.’ The conlang of Klingon from the TV show Star Trek may be the best example of a conlang. It originated on the show itself and continued by fans.
When we were kids, my sister and I tried to create a conlang of our own, but it didn’t get very far. In the end, we discovered the world was just fine with the already existing language and wasn’t hungry for a new one.