The term “nerd” originated in Dr. Seuss’s 1950 book, “If I Ran the Zoo”. In the book, the narrator mentions collecting “a Nerkle, a Nerd, and a seersucker too” as exhibits for the fictional zoo.
While the term initially had somewhat negative connotations, it has since evolved and is used more neutrally to describe people with a strong passion for intellectual or academic pursuits.