Possible origins and interpretations:
* Italian: It could be a variation of the Italian name "Lanfranco," which means "free lance."
* French: It could be a variation of the French name "Lancelot," meaning "little knight."
* Combination: It might be a combination of other names, such as "Lana" and "Nettie," creating a unique and personalized name.
Without further information, it's difficult to determine the exact meaning of "Lanetta." If you have any additional details, like family history or the origin of the name, it could help pinpoint a possible meaning.