Reconstructing language history and prehistory in the context of the Indo-European language family.

Almost all languages of Europe and of a large part of western Asia belong to a single language family, which is called Indo-European, and which includes modern languages like English, Dutch, Russian, Farsi, but also ancient ones like Ancient Greek, Latin, Hittite and Sanskrit.

Set up in 1991, this unique project aims to identify and describe the common lexical heritage of the most important Indo-European languages and language branches. The project has thus far resulted in twelve volumes published as The Leiden Indo-European Etymological Dictionary Series (Brill, Leiden).

Indo-European is the name of the language family to which English belongs, along with many sub-families such as Germanic languages and Romance languages. In this course, you will delve into the structure and origins of these branches, the oldest languages belonging to the language family, linguistic…

On the 12th of May, Stefan Norbruis successfully defended a doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Stefan on this achievement!

A linguistic prehistory of the Tarim Basin in Northwest China

Languages spoken around the world differ vastly from  the more familiar Indo-European languages. The courses in this theme aim to introduce you to the immense linguistic diversity still found in the world today. 

A linguistic test of hypotheses rooted in genetics and archaeology.

On the 24th of September, Louise S. Friis successfully defended a doctoral thesis. Leiden University Centre for Linguistics congratulates Louise on this achievement!

Nowadays, most Europeans speak a language belonging to the Indo-European language family. However, very different languages were spoken on our continent before the arrival of the Indo-Europeans. The EUROLITHIC project tries to find answers to the question which languages these were and where they came…

This project investigates properties of quantity expressions across languages from the perspective of how quantity is represented in the human brain.

Studying one another’s languages and cultures fosters understanding between groups of people, which leads to more equality, along with increased economic, administrative, and cultural cooperation.

This dissertation attempts to describe the linguistic history of Hittite on the basis of a systematic etymological treatment of its entire inherited lexicon, precisely analyzing the phonological and morphological developments.

A linguistic reconstruction of the migration of the Tocharians from Europe to China

When it comes to languages and cultures, Leiden University is the university. The global expertise present places our university at the top. In Leiden and The Hague, we study languages and cultures from all regions of the world and from prehistory to the present day. In this way we create a broad view…

The Leiden Summer School in Languages and Linguistics 2026 offers a varied program of introductory as well as more advanced courses in Anatolian, Classics, Descriptive Linguistics, Language Documentation, Eastern Christianity, Germanic, General Linguistics, Historical Linguistics, Indo-European, Indology,…

In this study, the formation of the Tocharian subjunctive is described, its use and meaning are analysed and its origins are investigated.

On the 6th of July, Anthony Jakob successfully defended a doctoral thesis. The Leiden University Centre for Linguistics congratulates Anthony on this achievement!

The present investigation aims at exploring whether the instruction provided at secondary schools in the capital meets the requirements of Communicative Language Teaching and whether the aims of improving learners’ communicative proficiency are met.

On the 23rd of March, Alessandro del Tomba successfully defended a doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Alessandro on this achievement!

The ultimate aim of the project is to find out whether there are such things as

Like any language, the natural sign languages (henceforth: SLs) of deaf communities differ from each other in their grammars and lexicons. A growing number of studies indicates that SLs make use of the gestures of hearing speakers to build linguistic structure. This implies that variation and similarities…

How do speakers adapt to multilingual contexts?

This project explores how Muslim authorities and writers use Russian to transmit Islamic contents, and whether this leads to a specific

On the 7th of November, Rasmus Thorsø Nielsen successfully defended a doctoral thesis. The Leiden University Centre for Linguistics congratulates Rasmus on this achievement!

This collaborative research group (CRG) facilitates the synergies of researchers engaged with African languages and documentation of texts conducted in East Africa, paying particular attention to ‘endangered archives’ and ‘endangered languages’.

On the 6th of January, Kefan Bao successfully defended a doctoral thesis. Leiden University Centre for Linguistics congratulates Kefan on this achievement!

The study of language in change.

At LUCL, researchers aim to contribute to a comprehensive and informed perspective on the human past.

At LUCL, researchers aim to contribute to a comprehensive and informed perspective on the human past.

How does Russia use propaganda and what characterises Russian propaganda in terms of language and argumentation?

This dissertation focuses on the systematic vowel alternations displayed by the Proto-Germanic n-stems. The fact is, that many of these nouns now appear to have preserved the ablaut system of the Indo-European proto-language spoken some five millennia ago. In this respect, the n-stems are truly comparable…

To what extent do aspects of fluency fluctuate throughout time? And how do raters take the dynamicity of fluency into account when rating performances?

In the specialisation in Modern Languages you will explore the structure, acquisition, history and use of one or more of these five languages in depth: Chinese, English, French, German and/or Italian.

Language connects us! We are here to help you! The Academic Language Centre (ATC) is the language centre of Leiden University. As the oldest university language centre in the Netherlands, we offer language courses in a wide range of languages, both for beginners and advanced students. All courses are…

On the 17th of January, Sarah Von Grebmer Zu Wolfsthurn successfully defended a doctoral thesis. The Leiden University Centre for Linguistics congratulates Sarah on this achievement!

From the smallest level of interaction among families and close friends, over the meso-level of schools, shops, churches, religious communities and companies, to the highest level of nation-states and international organisations: Language Policy and Planning (LPP) is everywhere!

On October 9th, Peter Alexander Kerkhof succesfully defended his doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Peter Alexander on this great result.

French Language and Linguistics at Leiden University offers a wide array of courses covering theoretical and applied linguistics, including language acquisition, syntax, and semantics.

English Language and Linguistics at Leiden University focuses on English language usage and linguistics around the world, including in countries where English is spoken as a second language or as part of a mixed language.