What does lau mean in Hawaiian?
Lau is a leaf, and also a number word meaning four hundred, or simply many. Laulau, the bundle of pork wrapped in taro and ti leaves, and laulima, many hands working together, both contain it. Kalau is the leaf, Laulani heavenly leaves, Leilau a lei of leaves.
Say it LOW. Every vowel is pronounced, and the capitalized syllable takes the stress. The pronunciation guide covers the rules.