The term was coined in 1957 by H. L. Mencken, from the Greek "biblio", meaning books, and the Latin "bibulous", from "bibere" (to drink).
"There are people who read too much: bibliobibuli. I know some who are constantly drunk on books, as other men are drunk on whiskey or religion. They wander through this most diverting and stimulating of worlds in a haze, seeing nothing and hearing nothing."
bibliobibuli pl (plural only)