Michiel de Vaan. Etymological Dictionary of Latin and the other Italic Languages. Indo-European Etymological Dictionaries Online. Edited by Alexander Lubotsky. Brill. Brill Online.
Dictionnaire Francais - Occitan, Occitan - Francais, Occitan de Cassignac, Arve. 2015. Dictionnaire Francais - Occitan, Occitan - Francais, Occitan de communication. Toulouse: Mobileoccitan. Can be consulted online at: http://www.panoccitan.org/
Nocentini, Alberto (2010). L'etimologico: vocabolario della lingua italiana. 1. ed. Milano: Le Monnier
Robert Farren, PIE culture words collection, 2017
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The element in question is marked in green.
When the etymological tree is displayed in hierarchical style, the nodes can be repositioned manually only within their level.
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Left-click on a node or edge to show additional information and links. In some browsers, the graph may be savable as an image when right-clicking on it.
This map shows the etymological links in a geographic context.