1. predecease - Noun
2. predecease - Verb
To die sooner than.
The death of one person or thing before another.
Source: Webster's dictionaryShe predeceased her husband Source: Internet
Windsor, p. 238 In 1952, King George VI died, the third of Queen Mary's children to predecease her; her eldest granddaughter, Princess Elizabeth, ascended the throne as Queen Elizabeth II. Source: Internet
They had two children together, Lev Sedov (1906 – 16 February 1938) and Sergei Sedov (21 March 1908 – 29 October 1937), both of whom would predecease their parents. Source: Internet