• Origin: Welsh
• Meaning: “flax; linen.”
• Gender: feminine
• Pronunciation: (SHEE-on)

The name can either be a contracted form of the female Welsh name Gwenllian (white linen; white flax) or derive from the Welsh word lliain (flax, linen).

Sources

• https://welshgirlsnames.co.uk/llian/#:~:text=Meaning%20and%20Origin%20of%20the,fiber%20source%20for%20making%20linen.
• https://www.walesonline.co.uk/whats-on/beautiful-welsh-baby-names-what-23321422
• https://en.wikipedia.org/wiki/Gwenllian
• https://geiriadur.uwtsd.ac.uk/