Where does “síothshluagh” come from?

síothshluagh (Irish) comes from Irish sí, from Old Irish sí, from Proto-Celtic sī, from Proto-Indo-European sih₂, from Proto-Indo-European -ih₂, from Proto-Indo-European -h₂ — Creates collective nouns, which refer to groups...

síothshluagh (Irish): fairy host, fairy army

Definitions

  1. fairy host, fairy army

Ancestry of “síothshluagh”, step by step

síothshluagh traces back through two separate lines of ancestry.

via Irish sí

StepLanguageWordMeaning
1Irishsífairy mound, tumulus; she; it
2Old Irishsíshe; it; Alternative spelling of síi
3Proto-Celticsīshe
4Proto-Indo-Europeansih₂she
5Proto-Indo-European-ih₂Feminizes athematic nominal stems
6Proto-Indo-European-h₂Creates collective nouns, which refer to groups...

via Irish slua

StepLanguageWordMeaning
1Irishsluahost, force, army; crowd, multitude, throng;...
2Old Irishslúag—
3Old Irishslógarmy, host; throng, crowd, company, assembly
4Proto-Celticslougostroop, army
5Proto-Indo-Europeanslowgʰo-—
Every word from Proto-Indo-European -h₂ →Every word from Proto-Indo-European -ih₂ →Every word from Proto-Indo-European sih₂ →