If you have a love of words, be sure to read through this post on the words that first appeared in the Oxford English Dictionary back in 1951. That was the year of the nerd, fast food, Vegan, and 401 others. "Nerd" and the word's creation is attributed to none other than Dr. Seuss: "The origin is uncertain, but signs point to the 1950 children’s book If I Ran the Zoo by Dr. Seuss, which uses nerd as the name of a creature, as its inspiration."
The lines have "Nerd" capitalized as a proper name: "And then, just to show them, I'll sail to Katroo / And bring back an It-Kutch, a Preep and a Proo, / A Nerkle, a Nerd and a Seersucker too!"
The word "Vegan" is listed as a proper name, as well; the meaning then was "an alien from a planet orbiting the star Vega," not someone who conforms to a particular type of diet.