Lahndan.

1903 H. H. Risley & E. A. Gait Rep. Census India 1901 i. 311 Lahndā is a language the existence of which has long been recognized, but under many names. In the last Census Report it was called Jatkī... I therefore think it best to give it the name which is indicated by the natives of the Punjab themselves, i.e. Lahndā or the Language of the West (Panjabi Lahndē-di Bōlī).

1907 G. A. Grierson in Imperial Gazetteer India (new ed.) I. 371 Lahndā or Western Panjābī is a language which appears under many names, such as Pothwārī, Chibhālī, Jatkī, Mūltānī, or Hindko... ‘Lahndā’, i.e. ‘Western’, has been lately suggested, and has been tentatively adopted, although it..is far from satisfactory.

1911 Encycl. Brit. XVI. 80/2 Lahnda (properly Lahndā or Lahindā, western, or Lahndē-dī bōlī, the language of the West), an Indo-Aryan language spoken in the western Punjab... Lahnda is also known as Western Panjabi and as Jatki, or the language of the Jats, who form the bulk of the population whose mother-tongue it is.

1948 D. Diringer Alphabet vi. 376 Kashtawari, which is a dialect of Kashmiri.., but is much influenced by the Pahari and Lahnda languages, spoken by its southern and south-eastern neighbours.

1967 D. S. Parlett Short Dict. Lang. 76 Lahnda... Closely related to Punjabi proper, with some features associated with the contiguous Dardic dialects.