The goddess Juno was one of the most important goddesses in ancient Rome. One of her several names was Juno Moneta. The Romans made coins at a temple dedicated to Juno Moneta. Eventually, the name "moneta" came to mean "a place where coins are made" and later simply "money" or "coin." English speakers adopted "moneta" as "mynet" and used it as a noun to name the place where coins are made. The verb use developed later. If you noticed a resemblance between "moneta" and the word "money," it's no coincidence – "moneta" is at the root of "money," too.