This popped into my Oxford English Dictionary word of the day last week, and is well worth quoting in full:
helluo librorum, n.Pronunciation: Brit. /ˌhɛljʊəʊ lᵻˈbrɔːrəm/, U.S. /ˌhɛljuoʊ ləˈbrɔ(ə)rəm/Etymology: < post-classical Latin helluo librorum (in some medieval MSS of Cicero) < classical Latin helluō HELLUO n. + librōrum, genitive plural of liber book (see library n.1). In early editions of Cicero De Finibus 3. 7, it is said that Cato ‘quasi helluo librorum‥videatur’ (‘appeared like a glutton for books’); the modern reading, restored from MS evidence by Jan Gruter in his edition of 1618, is ‘quasi helluari libris‥videatur’ (‘appeared as if to devour books’).Now rare.An insatiable reader, a bookworm.1635 S. BIRCKBEK Protestants Evid. xii. 4 One of these brothers was called Comestor‥, as it were booke-eater, because he was such a Helluo librorum, a devourer of bookes.
1738 Relig. of Nature Delineated (ed. 6) Pref. p. ix, He was of Opinion too That a man might easily read too much: And he considered the Helluo Librorum and the True Scholar as two very different Characters.
1841 U.S. Democratic Rev. Sept. 299 We would not style him exactly a helluo librorum, but rather a sort of antiquarian epicure of letters.
1942 E. K. Chambers Sheaf of Stud. 153 He [sc. Coleridge] does not mention the Bodleian, but it would be odd if such a helluo librorum did not see it.
I think it is time that this one got reused again. It be a great book blog name, except someone's beaten us to it.