先死比…先死先死
Predecease \Pre`de*cease\, v. t. To die sooner than. ``If children predecease progenitors.'' --Shak. Predecease \Pre"de*cease`\, n. The death of one person or thing before another. [R.] --Brougham.
predecease v : die before; die earlier than; "She predeceased her husband"