Math Terms in Arapaho: Shapes and Geometry
See’ko’einoo’ = Ellipse, ‘it is a flat circle’
Heenko’einoo’ = Oval, ‘it is a long circle’
Hoonkokoyoo’ = Rhombus, ‘it is a leaning over/falling over square’
Heenkokoyoo’ = Rectangle, ‘it is a long square’
Hoonenkokoyoo’ = Parallelogram, ‘it is a long leaning over/falling over square’
Nenees-oonee’ = Triangle, ‘it has three parts,’ or
Nenees-ouuyoo’ = Also triangle, ‘it has three points’
Any other n-sided figure can be expressed by adding the number root to the endings above:
| 4 | Yenein |
| 5 | Yonoo3on |
| 6 | Neniitootox |
| 7 | Neniisootox |
| 8 | Neneesootox |
| 9 | 3ii’otox |
| 10 | Beeteetox |
| 11 | Beteetox neniit |
| 12 | Beteetox neniis |
Hee3ei’oonee’ or hee3ei’ouuyoo’ = Polygon (of an underdetermined number of sides), ‘to what extent is has a body or a point’, or an even better way of saying it:
Heetoxoonee’ or heetoxouuyoo’ = Also polygon, ‘however many bodies or points it has’
Neneehiisou’u niisiihi’= Isosceles triangle (two angles are equal), ‘they are equal as/in two’
Neneehiisou’u neesiihi’ = Equilateral triangle (three angles equal), ‘they are equal as/in three’
Kookoyouuyoo’ = Right triangle, ‘it is squarely pointed’

