Language name and location: Mwakai, Papua New Guinea [Refer to Ethnologue]
语言名称和分布地区: 姆瓦凯语 (蒙戈尔语 Mongol), 巴布亚新几内亚东锡皮克省

1. mom^ŋɡo

2. ɲim

3. jawol

4. nani^ŋɡi

5. jepa

6. jepa mom^ŋɡo məlal (5+1)

7. jepa ɲim məlal        (5+2)

8. jepa jawol məlal     (5+3)

9. jepa nani^ŋɡi məlal   (5+4)

10. jepopo 

11. jepopo mom^ŋɡo məlal

12. jepopo ɲim məlal

13. jepopo jawol məlal

14. jepopo nani^ŋɡi məlal

Linguist providing data and dateː Dr. Russell Barlow, Department of Linguistics, University of Hawaii at Manoa, Hawaii, USA, April 15, 2018.
提供资料的语言 学家: Dr. Russell Barlow, 2018 年 4 月 15 日

Other comments: Mongol or Mwakai makes use of a quinary numeral system.

   The word for ‘five’ (jepa) seems related to the word for ‘hand’ (japon), probably reflecting a system of hand-counting underlying the quinary numerical system

   The numbers six through nine contain the verbal element məlal, which denotes that a given number has been added to the number five (jepa).

   The word for ‘ten’ (jepopo) may derive from a combination of jepa ‘five’ and popo ‘many’. It is unknown how numbers larger than fourteen are formed (if they are ever formed at all).

   Mwakai, is a moribund language, identified as “Mongol” in Ethnologue (21st ed.), is spoken in Kaimbal and Mongol villages, Angoram District, East Sepik Province, Papua New Guinea.