Where does “yardgrass” come from?

yardgrass (English) comes from English Yard, from English milliard, from French milliard, from French million, from Middle French million, from Old French millon, from Italian milione, from Italian mille.

yardgrass (English): Grass in a lawn; "Eleusine indica", a coarse...

Definitions

  1. Grass in a lawn; "Eleusine indica", a coarse...

Ancestry of “yardgrass”, step by step

yardgrass traces back through two separate lines of ancestry.

via English Yard

StepLanguageWordMeaning
1EnglishYardScotland Yard or New Scotland Yard
2Englishmilliard10, a thousand million
3FrenchmilliardA milliard
4Frenchmillionmillion, 10
5Middle Frenchmillionmillion, 10
6Old Frenchmillon
7Italianmilionemillion
8Italianmillethousand
9LatinMīllethousand; 1000
10Proto-Italicsmīɣeslīthousand
11Proto-Indo-Europeansmih₂ǵʰéslih₂

via English grass

StepLanguageWordMeaning
1EnglishgrassAny plant of the family Poaceae, characterized by...
2Middle EnglishgrasA grass; Any plant; especially a herbaceous one;...
3Old Englishgræsgrass
4Proto-West Germanicgrasgrass
5Proto-Germanicgrasągrass
6Proto-Indo-Europeanǵʰreh₁-to become green, grow; to grow; to green, to grow
Every word from Proto-Indo-European smih₂ǵʰéslih₂Every word from Proto-Italic smīɣeslīEvery word from Latin Mīlle