bibliotheca
noun
a collection of books; a library.
The grammatical form denoting more than one person, place, thing, or idea.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
His deputy called him diabolus bibliothecae, “the devil of the library”; others referred to him simply as Old Nick.
From The New Yorker ● May 1, 2017