The form of Fu is similar to the phonetic notation of the word.

Your question reminds me of a joke:

Once upon a time, there was a businessman who didn't know much about literacy, but he was good at showing off his words.

One day, he took a boat out to do business. The boat was anchored at Jiangxin Temple. He and his companions got off the boat and went to the temple to play. Suddenly, he saw three words on the pavilion: "Jiangxin Fu". He was shocked and shouted: "There are thieves, there are thieves!" The people traveling with him were confused, but he said seriously: "Isn't it written on the wall, 'Thieves in the heart of the river'!" The people traveling with him all laughed. He said to him: "That's not a 'thief', that's a 'fu'."

The man still shook his head and said: "Rich is rich (fu), but it always looks like a thief."

p>

The words "thief" and "fu" are very similar.

Thief: zéi thief bandit, capture thief... ...