Where does “kosočtverec” come from?

kosočtverec (Czech) comes from Czech čtverec, from Czech -eč, from Old Czech -ec, from Proto-Slavic -ьcь, from Lithuanian -ikas, from Proto-Indo-European -iḱos — -y, -ic.

kosočtverec (Czech): rhombus

Definitions

  1. rhombus

Ancestry of “kosočtverec”, step by step

kosočtverec traces back through two separate lines of ancestry.

via Czech čtverec

StepLanguageWordMeaning
1Czechčtverecsquare
2Czech-ečappended to nouns to form an agent noun; used only on composite nouns expressing fields of knowledge
3Old Czech-ecforms masculine nouns
4Proto-Slavic-ьcьForms diminutives from nouns; Forms nouns from...
5Lithuanian-ikas
6Proto-Indo-European-iḱos-y, -ic

via Czech kosý

StepLanguageWordMeaning
1Czechkosýcrooked, oblique
2Proto-Slavickǫsъpiece
3Proto-Slavickǫsatito bite
4Proto-Slavickǫ̑sъpiece
Every word from Proto-Indo-European -iḱosEvery word from Czech -ečEvery word from Proto-Slavic -ьcь