Yin and yang
Yin and yang, also yinyang or yin-yang, is a concept that originated in Chinese philosophy, describing opposite but interconnected, self-perpetuating cycle. Yin and yang can be thought of as complementary forces that interact to form a dynamic... Wikipedia
Baxter (1992): *ʔrjum ljang
Baxter–Sagart (2014): *q(r)um lang
Hanyu Pinyin: yīnyáng
Middle Chinese: 'im-yang