Where does “肛門性交” come from?

肛門性交 (Japanese) comes from Japanese 肛門, from Middle Chinese こうもん.

肛門性交 (Japanese): Synonym of アナルセックス

Definitions

  1. Synonym of アナルセックス

Ancestry of “肛門性交”, step by step

肛門性交 traces back through two separate lines of ancestry.

via Japanese 肛門

StepLanguageWordMeaning
1Japanese肛門anus
2Middle Chineseこうもん—

via Japanese 性交

StepLanguageWordMeaning
1Japanese性交sexual intercourse, sex, coitus, copulation; to...
2Chinese性交to have sex; to have sexual intercourse
Every word from Middle Chinese こうもん →Every word from Japanese 肛門 →