Lomwe is a mixed language

Mixed language

A mixed language is a language that arises through the fusion of two source languages, normally in situations of thorough bilingualism, so that it is not possible to classify the resulting language as belonging to either of the language families that were its source...

 spoken in southeastern Malawi

Malawi

The Republic of Malawi is a landlocked country in southeast Africa that was formerly known as Nyasaland. It is bordered by Zambia to the northwest, Tanzania to the northeast, and Mozambique on the east, south and west. The country is separated from Tanzania and Mozambique by Lake Malawi. Its size...

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Background

The Mozambique Lomwe are one of the four largest ethnic groups living in Malawi and have history of migration to the Mozambique–Malawi border zone. Many Lomwe moved into Malawi, where they mixed with the Nyanja, in the 1930s due to tribal wars in Mozambique. There the language mixed with Chichewa

Chichewa language

Chewa, also known as Nyanja, is a language of the Bantu language family. The gender prefix chi- is used for languages, so the language is also known as Chichewa and Chinyanja.-Distribution:...

 (Nyanja) until it was no longer mutually intelligible with Lomwe. It is now dying out, with only the eldest still speaking it as their main language, and many younger Lomwe shifting entirely to Chichewa.