Where does “muir foul” come from?

muir foul (Scots) comes from Scots muir, from Middle English More, from Old French More, from Latin Maurus, from Ancient Greek Μαυρούσιος, from Ancient Greek -ούσιος, from Ancient Greek -ῐος, from Proto-Indo-European -yós — Creates adjectives from noun or verb stems.

muir foul (Scots): red grouse

Definitions

  1. red grouse

Ancestry of “muir foul”, step by step

muir foul traces back through two separate lines of ancestry.

via Scots muir

StepLanguageWordMeaning
1Scotsmuirmoor
2Middle EnglishMoremore
3Old FrenchMore
4LatinMaurusOf or pertaining to the Moors; Moorish,...
5Ancient GreekΜαυρούσιοςan inhabitant of Mauretania; a Mauretanian
6Ancient Greek-ούσιοςforms relational adjectives: of or pertaining to
7Ancient Greek-ῐοςbelonging to; of”, “belonging to”, “pertaining to
8Proto-Indo-European-yósCreates adjectives from noun or verb stems

via Scots foul

StepLanguageWordMeaning
1Scotsfoul
Every word from Proto-Indo-European -yós