Languages attested from the 15th century

Indo-European language, spoken primarily in Albania, Kosovo, North Macedonia, and Montenegro

extinct Turkic language of Central Asia

dialects and varieties of the Greek language spoken in the modern era

the prestige language of the Yi people

stage of development of English, starting c. 16th century

Ajem-Turkic or Ajami Turkic (; Türkī-yi ʿacemī, 'Persian Turkic' or 'Persian Turkish'), also known as Middle Azeri or Middle Azerbaijanian, is the Turkic vernacular spoken in Iran between the 15th and 18th centuries. The modern Azerbaijani language is descended from this language.

variety of Spanish used in the sixteenth and seventeenth centuries

West Germanic language of Lowland Scotland (1450–1700)

venetian dialect of Rijeka, Croatia

Kanuri liturgical language of Nigeria