Possible meanings and origins:
* Derived from the Slavic word "bila" meaning "white" or "pale." This could be a descriptive surname for someone with fair skin or hair, or it could refer to a geographic location with a white or pale landscape.
* Variant of the surname "Bilak," which is also of Slavic origin.
* Could be a patronymic surname, meaning "son of Bila."
Geographic distribution:
The surname Bila is most common in Poland, Slovakia, and the Czech Republic. It is also found in other Slavic countries, as well as in Hungary, Romania, and Ukraine.
It's important to note that the exact origin and meaning of the surname Bila may vary depending on the specific family and location. To determine the specific origin of your family's surname, you may need to conduct further research.