'Juubi ' is a meaningless name. It 's a cold clinicality of listing a beast down by its features. Just like how the Kyuubi is described based on its nine tails and how 'Kappa ' is just the blending of the word 'river ' and 'child. '

It 's not quite giving curses a name, persay. But more of categorizing them into groups and ranks.

Sometimes curses are named based on their classification. Their appearance. For lower rank curses usually belong to one group or another. Being born of common, miscellaneous thoughts and feelings that aren 't quite warped enough to form stronger curses.

They don 't quite have a name as they are given one for convenience 's sake.

There 's no fear there, either. Of giving such curses a 'name '. For most do not fear them, nor would those outside the jujutsu world even fear them. So it 's generally safe to do so.

However, one must remember that names are power, in the jujutsu world.

This is doubly so for curses.