ToME: the Tales of Maj'Eyal

What does "crit pwr" mean? For each point of accuracy over defence it's increasing something that's not crit chance or crit multiplier, what then?

I'm pretty sure it increases crit multiplier. The accuracy bonus won't show on your character because it's calculated when you hit an enemy.

Why doesn't it show "crit mult" then, it would be more understandable to call one game term the same way each time.

Because then maybe people would expect to see an increase in crit mult in the stat sheet? Who knows. Could just be an antiquated term for the same thing.