In ancient Chinese, green was also used to represent "dark" colors, such as "bright future" and extended to "black". Such as: Lv Yun, green sideburns, refers to young women's hair.
Green is often used as a verb in ancient Chinese to make it green. Such as "Spring Breeze and Green Jiang Nanan". In this sense, only the word "greening" retains this usage.
Green, when reading Lu, is used in "Green Forest" and "green camp" (the local armed forces of Han people in Qing Dynasty), which belongs to the change of local accent, but it still means green. Today, some place names are pronounced in this way, such as "Yalu River", which has no difference between ancient and modern meanings. ?