There is no special meaning for Zhu Yuanzhang to name his son after wood. It is just that wood symbolizes prosperity. Two trees form a forest, and three trees form a forest. Only with trees can roots be planted and branches and leaves can flourish. Hope Your descendants will be prosperous and prosperous forever. But in fact, there is indeed no end, and a great prime minister will appear hundreds of years later, which is enough to comfort Comrade Zhu Yuanzhang's spirit in heaven.
There is another meaning next to the word wood, which means that the five elements are interdependent. Zhu Yuanzhang stipulated that starting from the second generation, the third character in the names of his children and grandchildren must strictly follow the order of the five elements of "fire, earth, metal, water, and wood" To specify the radicals (please note that this is the order in which the five elements are interdependent, not the order in which the five elements are in conflict), fire is the first, and wood produces fire, so Zhu Yuanzhang's first generation descendants all use wood as the radical.