Where does “wheatgrass” come from?

wheatgrass (English) comes from English wheat, from Middle English whete, from Old English hwǣte, from Proto-West Germanic hwaitī, from Proto-Germanic hwaitijaz, from Proto-Germanic hwītaz, from Proto-Indo-European ḱweytos — bright; shine; shine; bright.

wheatgrass (English): Young grass of the common wheat plant, "Triticum...

Definitions

  1. Young grass of the common wheat plant, "Triticum...

Ancestry of “wheatgrass”, step by step

wheatgrass traces back through two separate lines of ancestry.

via English wheat

StepLanguageWordMeaning
1EnglishwheatAny of several cereal grains, of the genus...
2Middle EnglishwheteWheat; The grain resulting from wheat; corn; The...
3Old Englishhwǣtewheat
4Proto-West Germanichwaitīwheat
5Proto-Germanichwaitijazwheat
6Proto-Germanichwītazwhite
7Proto-Indo-Europeanḱweytosbright; shine; shine; bright

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 ḱweytos