The Collaborative International Dictionary
Bibliotaph
Bibliotaph \Bib"li*o*taph\, Bibliotaphist \Bib`li*ot"a*phist\,
n. [Gr. ? book + ? a burial.]
One who hides away books, as in a tomb. [R.]
--Crabb.
Wiktionary
bibliotaph
n. (context rare English) One who "buries" books by hiding them, locking them away, or otherwise shutting them up and keeping them from use