Language name and locationː Coahuilteco, Texas state, USA [Refer to Ethnologue]

语言名称和分布地区: 夸维尔特克语, 美国中南部得克萨斯州和墨西哥东北部

1. pil

2. ajtê

3. ajti c pil

4. puguantzan

5. juyopamáuj

6. chicuas

7. puguantzan co ajti c pil (4 + 3)

8. puguantzan ajtê   (4 x 2?)

9. puguantzan co juyopamauj (4 + 5)

10. juyopamauj ajtê (5 + 2)

Linguist providing data and dateː Mr. Mark Rosenfelder, The Author of the website "Numbers from 1 to 10 in over 5000 languages", Chicago, USA, October 7 2023.

提供资料的语言学家: Mr. Mark Rosenfelder, 2023 年 10 月 7 日.

Other comments: Coahuilteco was one of the Pakawan languages that was spoken in southern Texas (United States) and northeastern Coahuila (Mexico). It is now extinct.
Coahuilteco was grouped in an eponymous Coahuiltecan family by John Wesley Powell in 1891, later expanded by additional proposed members by e.g. Edward Sapir. Ives Goddard later treated all these connections with suspicion, leaving Coahuilteco as a language isolate. Manaster Ramer (1996) argues Powell's original more narrow Coahuiltecan grouping is sound, renaming it Pakawan in distinction from the later more expanded proposal. This proposal has been challenged by Campbell, who considers its sound correspondences unsupported and considers that some of the observed similarities between words may be due to borrowing.
Coahuilteco has only recorded traditional numerals from 1 to 10 years ago, not sure if they were used a traditional decimal or vigesimal system before, New data for numbers after ten is required.