Bibliolatrous refers to the worship or excessive devotion towards books. However, there are several synonyms one can use to convey a similar meaning. One can use bookish, literary, or scholarly to describe someone who is excessively devoted to books or reading. Other synonyms include erudite, well-read, and bookworm. One can also use the term bibliophile, which refers to someone who loves and collects books. Similarly, the term book hoarder can be used to describe someone who accumulates a large number of books in their possession. Overall, there are numerous synonyms available to convey the idea of bibliolatrous or excessive devotion towards books.