This book is considered to be the authoritative reference on the Latin language, giving citations for every bizarre usage of every single word, and context to go along.

As a first-year classics major, I was unable to justify this one to my parents; indeed, my instructor has said that even at the graduate level, a much cheaper and less comprehensive dictionary such as Cassells, combined with access to the one in the university's classics library is sufficient.

But I want it. I want the strange, never-used-except-for-maybe-once-when-Livy-was-drunk definitions created in the great Roman tradition of stretching the meaning of a word beyond all recognition, rather than allowing a new one to be created.