About the sources
Every page combines several dictionaries that were never meant to sit side by side. This page says which part comes from where, and under what terms.
Lewis & Short, 1879
Charlton T. Lewis and Charles Short, A Latin Dictionary, published by the Clarendon Press at Oxford. For more than a century it was the standard Latin–English dictionary, and its 51,645 entries remain the fullest free account of classical usage. The text comes from the Perseus Digital Library's TEI edition, with Greek in Unicode. Its citations link to the passages in the Scaife Viewer where Perseus holds the text.
Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from The National Endowment for the Humanities. Data accessed from https://github.com/PerseusDL/lexica/ on 17 October 2026.
Wiktionary
Modern English definitions, example sentences, full conjugation and declension tables, classical and ecclesiastical pronunciation, etymologies and Romance descendants come from Wiktionary's Latin entries, via the kaikki.org extraction. The 1.2 million inflected forms in those tables are what let the search recognise amāvisset orrēgibus. Licensed CC BY-SA 4.0.
Frequency
The ranking of the commonest words follows the Dickinson College Commentaries Latin Core Vocabulary, the 1,000 most frequent lemmas in a large corpus of classical Latin (CC BY-SA 3.0). Beyond the core, words are ordered by how often Lewis & Short cites them.
The readers
The Latin-in-Latin definitions are taken from the margins and indexes of the Imperial Restitution graded readers, where every new word is explained in Latin the reader already knows. They are © Imperial Restitution Press and shown here with its permission.
Using this data
Because Lewis & Short and Wiktionary are share-alike, the dictionary data on this site is available underCC BY-SA 4.0 with the attributions above. Corrections are welcome.