Where does “共通点” come from?

共通点 (Japanese) comes from Japanese 点, from Middle Chinese 點 — mark, spot; dot, mark.

共通点 (Japanese): point in common; common feature

Definitions

  1. point in common; common feature

Ancestry of “共通点”, step by step

共通点 traces back through two separate lines of ancestry.

via Japanese 点

StepLanguageWordMeaning
1Japanese点spot, dot; score, grade, mark; point
2Middle Chinese點mark, spot; dot, mark

via Japanese 共通

StepLanguageWordMeaning
1Japanese共通common, shared
Every word from Middle Chinese 點 →Every word from Japanese 点 →