Here are a few options you could consider:
* Use a similar-sounding Hawaiian name:
* Makaʻi (pronounced mah-KAI) - meaning "police" or "guard"
* Maile (pronounced MY-lay) - meaning "a fragrant vine"
* Makana (pronounced mah-KAH-nah) - meaning "gift"
* Choose a Hawaiian name with a similar meaning:
* If "Macy" is a nickname for "Margaret," you could use "Mele" (pronounced MEH-lay), meaning "song" or "music."
* If "Macy" has another meaning, you could find a Hawaiian word that reflects it.
* Use a Hawaiianized version:
* "Masi" (pronounced MAH-see) is a possible phonetic translation, but it doesn't have a specific Hawaiian meaning.
Ultimately, the best way to say "Macy" in Hawaiian depends on your personal preference and the context.