Yuezhi; Rouzhi
Historical term for an ancient Central Asian people known in Chinese sources. Used in academic or historical contexts.
The Yuezhi were a nomadic people active in Central Asia around the 2nd century BCE.
I learned about the Yuezhi in history class.
Variant kanji spelling, less common than 月氏.
From Chinese 月氏 (Yuèzhī), an ancient ethnonym. The Japanese reading げっし is the on'yomi of the kanji.