Matasović, Ranko. Etymological Dictionary of Proto-Celtic. Indo-European Etymological Dictionaries Online. Edited by Alexander Lubotsky. Brill. Brill Online: http://iedo.brillonline.nl.ludwig.lub.lu.se/dictionaries/content/proto-celtic/index.html
Mistral, Frédéric (1879-1886). Lou tresor dóu felibrige, ou, Dictionnaire provençal-français: embrassant les divers dialectes de la langue d'oc moderne. Aix-en-Provence: Remondet-Aubin
Robert Farren, PIE culture words collection, 2017
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