Any word you try to create for the same thing would be as well because it would be the new word for it.
Also, there is Depression (condition) and Depression (colloquial usage) that's the way language works. The problem is not that the word is used, but that people believe the colloquial usage is the medical usage. They believe that when they feel depressed (colloquial) they just eat a cake or do something they like to get over it so why can't you when you're depressed (actual medical depression).