Links
NEXUS
Lewis and Short Latin Lexicon (very useful!)
Forcellini Latin Lexicon Another very useful lexicon, in which all the definitions are given in exemplary Latin. NB: It can be a little difficult to read some of the characters, and some of the definitions are rather long.
Thesaurus Linguae Latinae The most complete lexicon available, but not quite finished. There are still some missing words, mostly those beginning with “n” and those beginning with letters following “p” in the alphabet. Only contains words in Latin works prior to 600 CE.
Smith and Hall's English-Latin Dictionary. Useful dictionary composed in the 19th century. Some more recent terms are therefore not included.
DuCange's Latin dictionary of medieval Latin, composed in the 17th century. Avaliable in various places on the web.
ALIA SUBSIDIA
Allen and Greenough's New Latin Grammar for Schools and Colleges a thorough discussion of Latin grammar.
An example of Latin spoken in the Italian (Ecclesiastical) pronunciation.
Some books to consult regarding the pronunciation of Latin by people who lived during Roman times, considering evidence that Latin was not always pronounced exactly the same way at all times or by all people throughout the Roman world.