Where does “ardfholús” come from?

ardfholús (Irish) comes from Irish ard, from Old Irish ard, from Proto-Celtic ardwos, from Proto-Indo-European h₃erdʰwós, from Proto-Indo-European h₃erdʰ-, from Proto-Indo-European -wós — Creates adjectives from verb stems.

ardfholús (Irish): high vacuum

Definitions

  1. high vacuum

Ancestry of “ardfholús”, step by step

ardfholús traces back through two separate lines of ancestry.

via Irish ard

StepLanguageWordMeaning
1Irishardhigh, tall; loud; ambitious
2Old Irishardhigh; height
3Proto-Celticardwoshigh
4Proto-Indo-Europeanh₃erdʰwós—
5Proto-Indo-Europeanh₃erdʰ-to increase, grow; upright, high
6Proto-Indo-European-wósCreates adjectives from verb stems

via Irish folús

StepLanguageWordMeaning
1Irishfolúsvacuum, void
2Irish-asNominal suffix, used to form abstract ideas or...
3Old Irish-asNominal suffix, used to form abstract ideas or...
4Proto-Celtic-assus—
5Proto-Indo-European-ad-tus—
Every word from Proto-Indo-European -wós →Every word from Proto-Indo-European h₃erdʰ- →Every word from Proto-Indo-European h₃erdʰwós →