The etymology of NERD:
Earlier spelling of the term is “Nurd” and the original spelling is “Knurd”, but the pronunciation has remained the same. The term originated at Rensselaer Polytechnic Institute in the late 1940s. Students who partied, and rarely studied were called “Drunks”, while the opposite — students who never partied and always studied were “Knurd” (“Drunk” spelled backwards). The term was also (independently) used in a Dr. Seuss book and on the TV show Happy Days, giving it international popularity….