波罗的

• 罒(net; mesh (variant form))RADICAL
• 夕(evening; dusk)PHONETIC

Spreading a net at dusk to catch birds is the original meaning of the character.

• 白(white; bright)RADICAL
• 勺(spoon)PHONETIC

A spoon catching sunlight shines brightly and clearly — the character means "of" or shows clarity and definiteness.