Language name and locationː Palikúr, Brazil, French Guiana [Refer to Ethnologue]

语言名称和分布地区: 帕利库尔语, 巴西北部阿马帕州乌萨土著原住民地和法属圭亚那

Linguist providing data and dateː Mrs. Diana Green, SIL International, Brazil, January 8, 1996, December 16, 2013, February 3, 2020.

提供资料的语言学家: Mrs. Diana Green, 1996 年 1 月 8 日, 2013 年 12 月 16 日,

2020 年 2 月 3 日.

Other comments: Palikur or Pa’ikwaki is spoken by approximately 1,300 speakers in

Amapá state: Oiapoque municipality, Terra Indígena Uaçá I and II, in 10 villages; Urucauá river banks, right-bank tributary of the Uaçá between Uaçá and Curipi rivers, Brazil as well as French Guiana. Palikur has a decimal numeral system, yet numbers eight and nine are based on the term for number seven, ntewnenker, so ‘eight’ is ntewnenker akak pahat arawna, 'seven with one added'. The words used to form numeral phrases are akak ‘with', and arawna ‘its addition’. For numbers higher than 100, terms from the French creole trade language are usually used.

Palikur numbers have a breathtaking amount of affixes, most of which are mathematical or topological.
All numbers must have one of twenty-three affixes that classify the items being counted. e.g., living creatures, plants, abstractions, or a series of abstractions. Seven of these affixes classify inanimate units according to their topological characteristics such as boundary, interior, extendedness, overall continuity, symmetricality, and consistency. Normally, the classifiers are suffixes, but in words for number 2 (pina or pia),the classifiers are infixed in the root of the number.
In addition to the classifiers for individual units and for fractions, there also exist thirteen numeral classifiers for sets. Sets of tangible elements are classified according to the way the elements are connected to one another. Other classifiers indicate a sequential set, a contrastive (disjoint) set, and the number of elements in a set (cardinality), all concepts which mathematicians find useful.
Beyond that, Palikur numbers may also be inflected with six unique suffixes which refer to the mathematical concepts of numerical order, addition, subtraction,  multiplication, numerical limits, and totality.