Online version of the standard lexicon for sixteenth-century French by Edmond Huguet, which restores many obsolete words and connotations for modern readers. The dictionary lists about 100,000 keywords and has been published in 7 volumes between 1925 and 1967.

Online version of the classical Old French dictionary by Frédéric Godefroy, giving the grammatical category, variant forms, and range of meanings for each word listed. The dictionary includes about 160,000 entries and has been published in 10 volumes between 1881 and 1902.

LexiQamus is a reference work and online tool for identifying and analyzing illegible words from Ottoman-Turkish texts. It can even be used to search for the recognisable parts of a word. Based on over 170,000 words and phrases from 19 different dictionaries, LexiQamus comprises the entries of the reference work "A Turkish and English lexicon" (1890) by James Redhouse and all content from the website osmanlicasozlukler.com which collects entries from Ottoman dictionaries.

Universitetskaja Biblioteka Online offers ebooks on Russian Literature and Linguistics, History, Law, Economics, Social Sciences and Culture as well as Russian, Eurasian and Slavic Studies. The ebooks are hosted on University Library Online, e-content platform with English language interface. Additionally, for gaining a deeper understanding of Russia and Russian language, it provides access to: encyclopedias, audiobooks and maps.