"Blend of Zoe and Ella"
The name Zoella is commonly a female name from the "English" origin.
Zoella combines the name Zoe, from Greek zoe meaning life, with the -ella ending familiar from names such as Ella and Isabella. The form reads as an elaborated version of Zoe rather than as a name inherited from an older naming tradition. It is a rare formation in English-language naming, and no earlier documented use in another language is recorded for it.
The pronunciation of Zoella is zoh-EL-uh.