Old Prussian306 km larg
The only substantially attested West Baltic language, spoken in historical Prussia around the Sambia peninsula — today's Kaliningrad Oblast and north-eastern Poland. Extinct since the early 18th century, after the 1709–1711 plague; attested in three 16th-century catechisms and the Elbing vocabulary, with a modern reconstruction movement.EN
Romishtja polako-baltike372 km larg
Varietet Romani verior i rrënjosur historikisht në Poloni dhe Rajonin Baltik, i formuar nga kontakti i gjatë me gjuhë slave dhe baltike.
Livonian373 km larg
A Finnic Uralic language of the Livonian Coast of Courland, Latvia. The last fluent native speaker died in 2013, but an active revival sustains a small community of second-language speakers, supported by the University of Latvia Livonian Institute. Notable for its stød-like broken tone, rare among Uralic languages.EN
Polonishtja standarde393 km larg
Standardi i Polonishtes me bazë Varshavë. Gjuha zyrtare e Polonisë dhe gjuha më e folur Sllave brenda Bashkimit Evropian.
Kashubian458 km larg
A West Slavic minority language of Pomerania in northern Poland, centred on Kashubia. Closely related to Polish but with its own literary standard, orthography, and strong regional identity.EN
Estonishtja529 km larg
Gjuhë uralike finike dhe gjuha zyrtare e Estonisë; e lidhur ngushtë me finlandishten por e dallueshme në fjalor dhe në një sistem rasash pjesërisht të ristrukturuar.