白 Bái means 'white'

Add 一 yī 'one' and you get 百 bǎi 'hundred':

怕 Pà is 'fear':


The element on the left is a form of 心 xīn 'heart', indicating an emotion.

伯 Bó is 'father's elder brother':


Common word: bóbo 'father's elder brother'