1. "Aloha ʻia e ka hauʻoli" - This translates literally to "Loved by happiness" and conveys a sense of being enveloped in happiness.
2. "Hauʻoli nui loa" - This means "Very great happiness" and emphasizes the intensity of the feeling.
3. "Hauʻoli maikaʻi" - This translates to "Good happiness" and implies a pure and wholesome kind of happiness.
4. "Hauʻoli pono" - This means "Right happiness" and suggests a happiness that is fulfilling and appropriate.
Ultimately, the best way to convey "pure happiness" in Hawaiian depends on the specific context and the nuances you want to emphasize.