I'll bet the given names are from older and related languages.

By extension, a sprachraum can also include a group of related languages.

They conclude that the data in the 1995 and 2003 publications come from either the same language or two closely related languages.

See Nhangu for a detailed account of a closely related language.

Some of the older generation can speak Pal, a related language.

It is spoken as a second language by a couple thousand speakers of related languages.

It was also used for the closely related Slovak language.

Other related languages all seem to now be extinct without record.

People who are referred to as Carrier speak two related languages.

Researchers were able to reconstruct an earlier form of the language by comparing it with related languages.