What is why are oranges called oranges?

Oranges are called oranges because of their color. The word "orange" was originally used to describe the fruit's color, and then later applied to the fruit itself. Prior to the development of the sweet orange, oranges were bitter and were primarily used for medicinal purposes. The sweet orange originated in Asia and was brought to Europe in the 15th century. The fruit's popularity and wide availability led to the name "orange" becoming synonymous with the fruit itself.