"Google" was a popular word with little kids in the 1900's - 1960s.

Goo-goo ad gah-gah was how we described "baby language". Saying, "he goo-gooed" or "he googled" was to say he was using baby language.

The name Google was derived from Googol, which is a word for a very large number (10^100). According to Wikipedia, The word googol was coined in 1920 by 9-year-old Milton Sirotta (1911–1981), nephew of U.S. mathematician Edward Kasner. He may have been inspired by the contemporary comic strip character Barney Google.

So, yes, we knew that word. Similarly with hogwarts, describing the "warts" from warthogs.