Where does “赤色テロ” come from?

赤色テロ (Japanese) comes from Japanese 赤色, from Japanese 色, from Middle Chinese 色.

赤色テロ (Japanese): red terror

Definitions

red terror

Ancestry of “赤色テロ”, step by step

赤色テロ traces back through two separate lines of ancestry.

via Japanese 赤色

Step	Language	Word	Meaning
1	Japanese	赤色	Red; Red, communism
2	Japanese	色	color
3	Middle Chinese	色	—

via Japanese テロ

Step	Language	Word	Meaning
1	Japanese	テロ	Clipping of テロリズム

Every word from Middle Chinese 色 →Every word from Japanese 色 →Every word from Japanese 赤色 →