Where does “寝込む” come from?

寝込む (Japanese) comes from Japanese 寝る, from Japanese 寝, from Middle Chinese 寢.

寝込む (Japanese): to sleep soundly

Definitions

  1. to sleep soundly

Ancestry of “寝込む”, step by step

寝込む traces back through two separate lines of ancestry.

via Japanese 寝る

StepLanguageWordMeaning
1Japanese寝るto sleep
2Japanese寝sleep, sleeping; to sleep
3Middle Chinese寢—

via Japanese 込む

StepLanguageWordMeaning
1Japanese込むbe crowded; be complicated; go into, go in
Every word from Middle Chinese 寢 →Every word from Japanese 寝 →Every word from Japanese 寝る →