Late 16th century; earliest use found in John King (d. 1621), bishop of London. From classical Latin praelūsiōn-, praelūsiō preface, prelude from praelūs-, past participial stem of praelūdere + -iō.
Definition of prelusion in US English:
prelusion
nounprɪˈl(j)uːʒn
A prelude, an introduction; a precursor.
Origin
Late 16th century; earliest use found in John King (d. 1621), bishop of London. From classical Latin praelūsiōn-, praelūsiō preface, prelude from praelūs-, past participial stem of praelūdere + -iō.