What is the Latin word for will, as in willpower?

One is the choice or intention to do something, as in "willing" and "free will": Latin voluntās. Another meaning, though, is more like "resolve" or "mental strength": the force of mind that drives one to do something despite difficulties (as in "willpower", "force of will", "will to live").

1. What is free will in Latin?
2. What Omnia means?
3. How do you say vigor in Latin?

What is free will in Latin?

liberum arbitrium n free will.

What Omnia means?

Latin phrase. : prepared in all things : ready for anything.

How do you say vigor in Latin?

From Latin vigōrem (“vigour”).