Where does “旧世界猿” come from?

旧世界猿 (Japanese) comes from Japanese 旧世界, from Japanese 旧, from Japanese 人, from Proto-Japonic *pitə — one.

Ancestry of “旧世界猿”, step by step

旧世界猿 traces back through two separate lines of ancestry.

via Japanese 旧世界

StepLanguageWordMeaning
1Japanese旧世界the Old World
2Japanese旧old things, original state, former state, old...
3Japanese人a person, human; an individual; mankind, people
4Proto-Japonic*pitəone

via Japanese 猿

StepLanguageWordMeaning
1Japanese猿a monkey; Short for 日本猿; an ape
2Chinese猿ape
Every word from Proto-Japonic *pitə →Every word from Japanese 人 →Every word from Japanese 旧 →