expression, godan verb (-ru)
be on the brink of death
Abbreviation of 命旦夕に迫る. A literary, somewhat archaic expression used when death is imminent. Rare in modern conversation.
See also: 命旦夕に迫る
「旦夕に迫る」 is an abbreviation of 命旦夕に迫る, a literary expression meaning that death is imminent.