N e x u s

Nescire […] quid ante quam natus sis acciderit,
id est semper esse puerum.

Cicero, Orator, XXXIV, 120.

http://rhetoric.byu.edu/ A dictionary of rhetoric.    

http://mcl.as.uky.edu/glossary-rhetorical-terms A glossary of rhetorical terms, from “alliteration” to “zeugma”.

http://droitromain.upmf-grenoble.fr/ Texts of Roman law; with some translations into English and other languages.