Where did the Greatful Dead get their name?

The official story on the Grateful Dead, as related by Jerry Garcia in the book Playing in the Band, is as follows: "We were standing around in utter desperation at Phil [Lesh]'s house in Palo Alto [trying to think up a name for the band]. There was a huge dictionary, big monolithic thing, and I just opened it up. There in huge black letters was `The Grateful Dead.' It ... just cancelled my mind out."

I'll say--how often does the phrase "grateful dead" pop up in the average dictionary? But it turns out Garcia may not have hallucinated the whole thing after all. In the Funk & Wagnalls Standard Dictionary of Folklore, Mythology and Legend, we find a page headed "GRATEFUL DEAD" in big type. Beneath this is an entry to the effect that the "grateful dead" is a motif figuring in many folktales.

From The Straight Dope by Cecil Adams