What prefix can be used for the word mission

Another could be permission.

Euthanasia: The painless killing of a patient suffering from an incurable and painful disease or in an irreversible coma. The practice is illegal in most countries. Is more commonly used for animals.
Physiognomy: A person's facial features or expression, especially when regarded as indicative of character or ethnic origin. (the supposed art of judging character from facial characteristics.)