• Origin: Welsh
• Meaning: “blueness; verdure.”
• Gender: feminine
• Pronunciation: GLESS-nee

The name is derived from the Welsh word glesni (blueness; verdure).

Sources

• https://geiriadur.uwtsd.ac.uk
• https://www.wales101.com/welsh-baby-girls-names
• https://welshgirlsnames.co.uk/