Dictionnaire de la langue française

The Dictionnaire de la langue française by Émile Littré, commonly called simply the "Littré", is a four-volume dictionary of the French language published in Paris by Hachette.

The dictionary was originally issued in 30 parts, 1863–72; a second edition is dated 1872–77. A further edition is reported in 1877, published by Hachette.

Versions of Littré dictionary content that are searchable online (notably not of the type meant for download to physical devices) are available both on a site named for the dictionary’s originator, and on a multifaceted site including among its diverse resources its own adaptation   of the dictionary.

The British Library's on-line integrated catalogue describes the contents as: 1o Pour la nomenclature...: 2o Pour la grammaire...: 3o Pour la signification des mots...: 4o Pour la partie historique...: 5o Pour l’étymologie..