Where does “fioghual” come from?

fioghual (Irish) comes from Irish fiodh, from Old Irish fid, from Proto-Celtic widus, from Proto-Indo-European h₁weydʰh₁-, from Proto-Indo-European dwi-, from Proto-Indo-European dwóh₁ — two.

fioghual (Irish): charcoal

Definitions

  1. charcoal

Ancestry of “fioghual”, step by step

fioghual traces back through two separate lines of ancestry.

via Irish fiodh

StepLanguageWordMeaning
1Irishfiodhwood, timber
2Old Irishfidtree; wood, timber; letter of an alphabet
3Proto-Celticwiduswood, trees
4Proto-Indo-Europeanh₁weydʰh₁-to separate, divide
5Proto-Indo-Europeandwi-two; apart, asunder
6Proto-Indo-Europeandwóh₁two

via Irish gual

StepLanguageWordMeaning
1Irishgualcoal
2Middle Irishgúalcharcoal, coal
3Celtic*goulos—
Every word from Proto-Indo-European dwóh₁ →Every word from Proto-Indo-European dwi- →Every word from Proto-Indo-European h₁weydʰh₁- →