Where does “自宅待機” come from?

自宅待機 (Japanese) comes from Japanese 待機 — being on alert, standby; stand by.

自宅待機 (Japanese): standing by at home (e.g. to prevent the spread of illness)

Definitions

  1. standing by at home (e.g. to prevent the spread of illness)

Ancestry of “自宅待機”, step by step

自宅待機 traces back through two separate lines of ancestry.

via Japanese 待機

StepLanguageWordMeaning
1Japanese待機being on alert, standby; stand by

via Japanese 自宅

StepLanguageWordMeaning
1Japanese自宅one's own home
Every word from Japanese 待機