Solidus (noun)

1. A gold coin used in ancient Rome and Byzantine Empire.
2. A diacritical mark (/) used to indicate a phonological boundary, such as between syllables or between words.

Origin:

The word "solidus" comes from the latin word "solidus" which means "solid" and was used to refer to a coin of solid gold, as opposed to one with a lower gold content.

Examples:

1. The emperor issued a new solidus with his image on it.
2. The solidus was used to indicate the break between syllables in the written word.
3. The ancient Roman Empire used solidus as a currency.
4. The solidus was used to separate words in some ancient texts.
5. The Byzantine Empire continued to use solidus as a currency.