Do Words get shorter (and more abstract) as the celestials influence increases?
Possibly, but not necessarily. Celestials don’t lightly change Words. They’re more likely to be stripped of a Word than to change it. The Word you first get is you. You are uniquely tuned to it. To try to change it on your own goes against nature. You must promote the Word which is yours, not shop around for cooler one. Though you can aim for bigger Words which subsume the current one. Again, check out the Game Master’s Guide.