• Origin: Welsh
• Meaning: “white rose.”
• Gender: Female
• Pronunciation

The name is composed of the Welsh words, rhos (rose) and gwyn (white; blessed). As a given-name, it first came into use in the mid 19th-century.

Sources

• https://geiriadur.uwtsd.ac.uk/
• https://www.behindthename.com/name/rhoswen/submitted
• https://nameberry.com/b/girl-baby-name-rhoswen