Where does “neamhéifeachtach” come from?

neamhéifeachtach (Irish) comes from Irish neamh, from Old Irish nem, from Proto-Celtic nemos, from Proto-Indo-European nébʰos, from Proto-Indo-European -os — Creates action nouns or result nouns from verbs;...

neamhéifeachtach (Irish): ineffective; inefficient

Definitions

  1. ineffective; inefficient

Ancestry of “neamhéifeachtach”, step by step

neamhéifeachtach traces back through two separate lines of ancestry.

via Irish neamh

StepLanguageWordMeaning
1Irishneamhheaven; sky, firmament
2Old Irishnemheaven; sky; radiance
3Proto-Celticnemossky, heaven
4Proto-Indo-Europeannébʰoscloud; mist, moisture
5Proto-Indo-European-osCreates action nouns or result nouns from verbs;...

via Irish éifeachtach

StepLanguageWordMeaning
1Irishéifeachtachforceful, significant; efficacious, effective;...
2Old Irishéifechtacheffective, efficacious, efficient; weighty,...
Every word from Proto-Indo-European -osEvery word from Proto-Indo-European nébʰosEvery word from Proto-Celtic nemos