Editing Senary (section)

==Natural languages==
Despite the rarity of cultures that group large quantities by 6, a review of the development of numeral systems suggests a threshold of numerosity at 6 (possibly being conceptualized as "whole", "fist", or "beyond five fingers"<ref>{{cite journal|jstor=10.1086/430579|title=Origins of Northern Costanoan ʃak:en 'six':A Reconsideration of Senary Counting in Utian|first=Juliette|last=Blevins|date=3 May 2018|journal=International Journal of American Linguistics|volume=71|issue=1|pages=87–101|doi=10.1086/430579|s2cid=144384806 }}</ref>), with 1–6 often being pure forms, and numerals thereafter being constructed or borrowed.<ref name="plankS">{{cite journal |last=Plank |first=Frans |date=26 April 2009 |title=Senary summary so far |journal=Linguistic Typology |volume=13 |issue=2 |url=https://ling.sprachwiss.uni-konstanz.de/pages/home/plank/for_download/publications/151_Plank_SenerySummary_2009.pdf |url-status=live |archive-url=https://web.archive.org/web/20160406105208/http://ling.uni-konstanz.de/pages/home/plank/for_download/publications/151_Plank_SenerySummary_2009.pdf |archive-date=2016-04-06 |access-date=August 31, 2022 |doi=10.1515/LITY.2009.016|s2cid=55100862 }}</ref>

The [[Ndom language]] of [[Western New Guinea]], [[Indonesia]], is reported to have senary numerals.<ref>{{Cite journal |last=Owens |first=Kay |date=April 2001 |title=The work of Glendon Lean on the counting systems of Papua New Guinea and Oceania |url=https://link.springer.com/article/10.1007/BF03217098 |journal=[[Mathematics Education Research Journal]] |language=en |volume=13 |issue=1 |pages=47–71 |doi=10.1007/BF03217098 |bibcode=2001MEdRJ..13...47O |s2cid=161535519 |issn=1033-2170 |url-access=registration |access-date=August 31, 2022 |via=Springer}}</ref><ref>{{Citation | last=Owens | first=Kay | title=The Work of Glendon Lean on the Counting Systems of Papua New Guinea and Oceania | journal=Mathematics Education Research Journal | year=2001 | volume=13 | issue=1 | pages=47–71 | url=http://www.uog.ac.pg/glec/Key/Kay/owens131.htm | doi=10.1007/BF03217098 | bibcode=2001MEdRJ..13...47O | s2cid=161535519 | url-status=dead | archive-url=https://web.archive.org/web/20150926003303/http://www.uog.ac.pg/glec/Key/Kay/owens131.htm | archive-date=2015-09-26 }}</ref>  ''Mer'' means 6, ''mer an thef'' means 6 × 2 = 12, ''nif'' means 36, and ''nif thef'' means 36 × 2 = 72.

Another example from [[Papua New Guinea]] are the [[Yam languages]]. In these languages, counting is connected to ritualized yam-counting. These languages count from a base six, employing words for the powers of six; running up to 6<sup>6</sup> for some of the languages. One example is [[Kómnzo language|Komnzo]] with the following numerals: ''nibo'' (6<sup>1</sup>), ''fta'' (6<sup>2</sup> [36]), ''taruba'' (6<sup>3</sup> [216]), ''damno'' (6<sup>4</sup> [1296]), ''wärämäkä'' (6<sup>5</sup> [7776]), ''wi'' (6<sup>6</sup> [46656]).

Some [[Niger–Congo languages]] have been reported to use a senary number system, usually in addition to another, such as [[decimal]] or [[vigesimal]].<ref name=plankS/>

[[Proto-Uralic language|Proto-Uralic]] has also been suspected to have had senary numerals, with a numeral for 7 being borrowed later, though evidence for constructing larger numerals (8 and 9) subtractively from ten suggests that this may not be so.<ref name=plankS/>