Free Online Resources for Indo-Europeanists

Classics

Diogenes - environment for reading and searching through texts in Latin and Ancient Greek that includes dictionary support

Greek

GEW - Frisk's Griechisches Etymologisches Wörterbuch

DGE - Diccionario Griego-Español

TLG - Thesaurus Linguae Graecae

PHI Greek Inscriptions

DAMOS - Database of Mycenean at Oslo

LiBER - Linear B Electronic Resources

TGL - Thesaurus Graecae Linguae

Latin

CIL - Corpus Inscriptionum Latinarum

Corpus Corporum

PHI Classical Latin Texts

CGL - Corpus Grammaticorum Latinorum

Romance

DÉRom - Dictionnaire Étymologique Roman

AND - Anglo-Norman Dictionary

Dictionnaire Électronique de Chrétien de Troyes

Indic

Sanskrit Library - This website is full of useful resources including a page that allows you to search multiple dictionaries at once and compare entries. Control which dictionaries you see under "Preferences".

Rigveda Translation Commentary (Stephanie W. Jamison)

CPD - Critical Pāli Dictionary 

The Pali Text Society's Pali-English dictionary

Turner's Comparative dictionary of Indo-Aryan languages

https://tipitaka.org/ - searchable and downloadable Pāli Canon

Anatolian

HPM - The Hethitologie Portal Mainz

http://hittitepassages.com/

Hittite Name Finder

ACLT (Annotated Corpus of Luwian Texts)

Cuneiform Luvian Lexicon (H. Craig Melchert)

Luwili Project

eDiAna (Digital Philological-Etymological Dictionary of the Minor Ancient Anatolian Corpus Languages)


Germanic

Bosworth-Toller Anglo Saxon Dictionary

Cleasby-Vigfusson Icelandic Dictionary

EWA - Etymologischen Wörterbuch des Althochdeutschen

ONP - Dictionary of Old Norse Prose

Íslensk nútímamálsorðabók

Wulfila Project - digital library dedicated to the study of the Gothic language and Old Germanic languages in general.

Corpus of Middle English Prose and Verse

Middle English Compendium

EDD - Joseph Wright's  English Dialect Dictionary,

DW - Deutsches Wörterbuch von Jacob Grimm und Wilhelm Grimm

RuneS - Runische Schriftlichkeit in den germanischen Sprachen 

Baltic

LKŽ - Dictionary of the Lithuanian Language

Senieji rastai - digitized Old Lithuanian texts

Celtic

eDIL - Electronic Dictionary of the Irish Language

https://www.teanglann.ie/ga/ - A dictionary of Modern Irish

GPC - A Dictionary of the Welsh Language

A Welsh Grammar, Historical and Comparative by John Morris-Jones

Armenian

Նայիրի - Classical Armenian dictionary

https://arak29.org/category/language/

https://dictionary.calfa.fr/

AUA Digital Library

EANC - Eastern Armenian National Corpus