English to Latin google translate seems to work for most words, but the translation from English "sonic" seems odd to me (a Latin non-speaker/reader/writer):
Is this accurate, and if so, what is GENIUS? (and why is it in all caps?)
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No! The Latin word genius means something like a spirit, and has nothing to do with "sonic". Google Translate is not to be trusted at all with Latin, and you have found yet another piece of evidence of this.
The word sonic comes from the Latin word sonus, "sound". From this noun you can derive the adjective sonicus, "sound-related", but it does not appear in classical Latin. In any case, I think sonicus is the best Latin translation of the English "sonic". And this should make sense; a sonic boom is a boom related to sound. It has nothing to do with "genius".