I don't know that one, but I do know gargantuan, and pantagruelian, which come from a 17th century novel by Rabelais as well as yahoo and Lilliputian, which come from a 1726 novel by Swift.
gargantuan and yahoo are common parlance, people actually use these, in spite of them not knowing their origin. When's the last time you've seen those written down, or spoken, anywhere aside from those nearly half millennia old books? I've never seen those.