Indo-European Etymological Dictionaries Online

The Indo-European Etymological Dictionaries Online (IEDO) reconstruct the lexicons of the most important languages and language branches of Indo-European. As of 2023, IEDO is available for libraries in two different formats.

  • IEDO – Consolidated Database is a unified online resource containing most of the individual dictionaries, as well as some additional dictionaries that are not offered individually.
  • IEDO – Individual Dictionaries is a series of online resources that can be purchased separately but are all cross-searchable.

    There are three search options: single language, all languages, or a subset of two or more languages. In addition to simple searches, literal (whole-word) searches are also possible. Entries are accompanied by grammatical information, meaning(s), etymological commentary, reconstructions, cognates, and bibliographical information. From time to time additional dictionaries will be made available for purchase. Updates to existing dictionaries, consisting of additional and revised entries, are provided as a free service to subscribers.

    NEW features as of 2023:
  • Online dictionaries are available individually for the first time
  • Literal (whole-word) search box added
  • Multiple searches on a subset of languages made easy via a cluster page
  • Two new online resources will be added to the consolidated database in September 2023: A Digital Concordance of the R̥gveda by Alexander Lubotsky, and The R̥gveda: The complete text with Geldner's and Griffith’s translations
  • Updates to existing dictionaries provided as a free service to subscribers

    Please note that more components are included in the consolidated database than are available individually. Components that are currently only available as part of the consolidated database appear in bold font. Some of them may be made available individually in the future.

    IEDO – Consolidated Database includes the following components:
  • Etymological Dictionary of the Armenian Inherited Lexicon Online
  • Etymological Dictionary of the Baltic Inherited Lexicon Online
  • Etymological Dictionary of Proto-Celtic Online
  • Etymological Dictionary of Old Frisian Online
  • Etymological Dictionary of Proto-Germanic Online
  • Etymological Dictionary of Greek Online
  • Etymological Dictionary of the Hittite Inherited Lexicon Online
  • Etymological Dictionary of the Iranian Verb Online
  • Etymological Dictionary of Latin Online
  • Cuneiform Luvian Lexicon Online
  • Reconstructing Proto-Nostratic Online
  • Etymological Dictionary of the Slavic Inherited Lexicon Online
  • Etymological Dictionary of Tocharian B Online
  • Materials for an Etymological Database of North Lechitic Dialects Online
  • Lithuanian Etymological Dictionary Online
  • A Digital Concordance of the R̥gveda (forthcoming Sept 2023)
  • The R̥gveda Online: Complete text with Geldner's and Griffith’s translations (forthcoming Sept 2023)
  • Please contact our sales team for more information on prices and licensing.

    Alexander Lubotsky is Professor of Comparative Indo-European Linguistics at Leiden University, and he is a member of the Royal Netherlands Academy for Arts and Sciences, and a member of Academia Europaea. His publications include The system of nominal accentuation in Sanskrit and Proto-Indo-European (Brill, 1988), A R̥gvedic Word Concordance , 2 Vols. (American Oriental Society, 1997), Atharvaveda-Paippalāda, kān ̣d ̣a five. Text, translation, commentary (Harvard Oriental Series, 2002), and Alanic marginal notes in a Greek liturgical manuscript (Verlag der Österrei¬chi¬schen Akademie der Wissenschaften, 2015).
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