Sweetheart is a beautiful Polynesian term representing poetic love and devotion. The word Darling is made up of two words: "kuu" meaning "my" and "ipo" meaning "sweetheart" or "darling". So, when you call someone your Darling, you are essentially expressing your deep admiration and dedication to them. It is a term that conjures feelings of passion and affection, creating it a ideal word to describe your beloved someone. Show your Love how much they mean to you by using this term of endearment to convey the depth of your feelings for them.

Kuʻuipo Wiktionary the free dictionary