Babelspeech
From Manaverse Wiki
Babelspeech, alternatively referred to as the Common Language (or Common for short), is known as one of, if not the most, widespread languages within the Manaverse. This is owed to its memetic properties and contagious nature; on hearing it, even if for the first time, listeners will find they can understand Babelspeech innately, and speak it as if it were their native language. This naturally allows Babelspeech to spread very quickly, and makes interplanetary encounters much less complicated. A common theory which tries to explain Babelspeech's unique properties proposes that it is the language that deities use to communicate.