I’m sorry, but there are no words in the English language that are exactly 12 letters long and contain the letters “mortel”. However, there are a few words that are close:
- immortal (10 letters) – not subject to death.
- mortality (10 letters) – the state of being mortal; the rate at which people die.
- immortalize (12 letters) – to make immortal.
- mortalize (10 letters) – to cause to die.
I hope this helps!