Languages attested from the 13th century

Tai language

official language of Mongolia

Indo-Aryan language spoken in South Asia, comprising the two normative forms of Hindi and Urdu

language from the Dardic subgroup of the Indo-Aryan languages

North Germanic language

Rekhta ( ; Rekhtā) was an early form of the Hindustani language. This style evolved in both the Perso-Arabic and Nagari scripts and is considered an early form of Standard Urdu and Modern Standard Hindi. According to the Pakistani linguist and historian Tariq Rehman, Rekhta was a highly Persianised variant of Hindustani, exclusively used by poets. It was not only the vocabulary that was Persianised, but also the poetic metaphors, inspired by Indian landscapes and seasons, were abandoned in favor of the Persian ones i.e. bahār (spring) replacing barsāt (rainy season).

archaic linguistic form used in English courts after 1066

Franco-Italian, also known as Franco-Venetian or Franco-Lombard, in Italy as lingua franco-veneta "Franco-Venetan language", was a literary language used in parts of northern Italy, from the mid-13th century to into the 15th century. It was employed by writers including Brunetto Latini and Rustichello da Pisa and was presumably only a written language, and not a spoken one.