Where does “neljänurkkain” come from?

neljänurkkain (Ingrian) comes from Ingrian -nurkkain, from Ingrian -in, from Proto-Finno-Ugric *-in, from Proto-Uralic -ma.

neljänurkkain (Ingrian): tetragon

Definitions

  1. tetragon

Ancestry of “neljänurkkain”, step by step

StepLanguageWordMeaning
1Ingrian-nurkkainUsed to form names of polygons: -gon, -angle
2Ingrian-inForms adjectives indicating the material of which something is made; -en
3Proto-Finno-Ugric*-in—
4Proto-Uralic-ma—
Every word from Proto-Uralic -ma →Every word from Ingrian -in →Every word from Ingrian -nurkkain →