Soror

The name 'Soror' comes directly from the Latin word 'soror', meaning 'sister'. In ancient Rome, it was not typically used as a given name but rather as a term of address or a descriptor for a female sibling. Its use as a proper name is extremely rare and would likely be a modern, intentional choice to evoke its direct meaning.

While not a traditional given name, its simplicity and clear meaning could appeal to those looking for a unique name with a strong, familial connotation. Its direct translation makes it easily understandable across many Romance languages, where similar words for 'sister' are derived from the same Latin root.