* Keiki ho'omana'o - This translates to "spiritual child" and is a common way to refer to a godchild.
* Keiki i ho'ohikiia - This translates to "child who has been promised" and can be used to describe a godchild who has been formally entrusted to the care of a godparent.
* Keiki i alohaia - This translates to "loved child" and can be used to express the affection and care that a godparent has for their godchild.
Ultimately, the best way to say "goddaughter" in Hawaiian depends on the context and the specific relationship between the godparent and godchild. You can also use a combination of these phrases to convey the full meaning.