Adams, Douglas Q. (2013). Etymological Dictionary of Tocharian B. Revised and Greatly Enlarged. Amsterdam - Atlanta: Rodopi.
CeDICT: A Comprehensive e-Dictionary of Tocharian (Online). The Faculties of Humanities and Theology, Lund University. Content manager: Gerd Carling.
Pinault, Georges (2004). Core of Tocharian Etymology (outside pronouns and numerals). Handout, Tocharian course, Freie Universität, Berlin.
Robert Farren, PIE culture words collection, 2017
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When the etymological tree is displayed in hierarchical style, the nodes can be repositioned manually only within their level.
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This map shows the etymological links in a geographic context.