My native language, Finnish, can string together words and word parts to make an infinite number of new words.. such as epäjärjestelmällistyttämättömyydellänsäkäänköhän.
Now that is an impressive-looking word. What does it mean?
And doesn't Finnish have some ridiculous number of declensions as well? I sem to remember a character reciting them in Samuel R. Delany's Babel-17.