What are the five elements of Japanese characters?

Japanese characters belong to the five elements: fire.

Is it named after Japanese words? Nervous (short for jittery)

There are several Japanese characters in Kangxi Dictionary: four.

Japanese meaning of the name: the sun. During the day

The ideograph "Sun" is one of the earliest hieroglyphs, which simulates the sun. In early bronze inscriptions, circles were used to simulate the sun. In the future, there will be one or more horizontal lines in the circle of Oracle Bone Inscriptions and Jin Wen.

As for why the ancients added a short cross or a point to the circle, some people think that this short cross or a point may indicate that the sun is solid, not a hollow circle.

In the eyes of the ancients, the sun is a radiant emitter and a personified god. In some civilizations, the sun god is the greatest among the gods.