The term was coined in the US in the late 1980s by Barbara Gonyo, the founder of Truth Seekers In Adoption, a Chicago-based support group for adoptees and their new-found relatives.
这个词是在20世纪80年代后期由Barbara Gonyo发明的，Barbara Gonyo是Truth Seekers In Adoption的创始人，这是一家总部位于芝加哥的收养者和新发现亲戚的支持团体。