What is the meaning of the Latin phrase Auro perennius?

Answer 1

Auro could be either a verb, in which case it means "I gild," or a noun, in which case it means "to, for, or by means of gold.' Perennius, on the other hand, doesn't exist as such, but may be a misspelling of perennis, which means "perennial, eternal." However, perennis is not in the right case to modify auro (if the latter is in fact a noun). Perhaps it should be perenni, in which case the whole phrase would mean "to, for, or by means of eternal gold." Otherwise the meaning remains obscure.