How do you say God Bless you in Hawaiian language?

Ke Akua(God) Ho'omaika'i(Bless) Oe(You)!

While the above answer may be right it depends what you're saying it in regards to. For instance if you were saying it to someone who just sneezed I'd use the much shorter "ola" which basically means "life". I can't remember what my kumu, teacher, told me about why it's used though. He was more of an old timer though...so maybe it's an old time way of saying bless you to a sneeze.