Analysis: "Jin" has not been simplified and is an inherited word. The so-called traditional Chinese characters are still "gold". The word "traditional Chinese characters" is only used when a word has simplified Chinese characters. If a Chinese character has no corresponding simplified character, it belongs to the category of inherited characters.
Second, the basic explanation:
Generic name or generic name of metal.
Golden and yellowish, used especially of hair.
Third, the evolution of glyphs: