Where does “虹彩異色症” come from?

虹彩異色症 (Japanese) comes from Japanese 症, from Middle Chinese 症.

虹彩異色症 (Japanese): heterochromia iridium

Definitions

  1. heterochromia iridium

Ancestry of “虹彩異色症”, step by step

虹彩異色症 traces back through two separate lines of ancestry.

via Japanese 症

StepLanguageWordMeaning
1Japanese症"attached to the names of conditions"
2Middle Chinese症—

via Japanese 虹彩

StepLanguageWordMeaning
1Japanese虹彩an iris
Every word from Middle Chinese 症 →Every word from Japanese 症 →