Darling is a beautiful Hawaiian term indicating 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 Sweetheart, you are essentially expressing your deep fondness and loyalty to them. It is a phrase that evokes feelings of desire and affection, making it a perfect word to describe your beloved someone. Show your Sweetheart 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