Where does “horseflesh” come from?

Horseflesh comes from Middle English hors and flesh, with flesh from Old English flǽsc, ultimately derived from Proto-Indo-European ḱers- meaning to cut or scrape.

horseflesh (English): The flesh of a horse; horse meat; Horses...

Definitions

  1. The flesh of a horse; horse meat; Horses...

Ancestry of “horseflesh”, step by step

horseflesh traces back through two separate lines of ancestry.

via English flesh

StepLanguageWordMeaning
1EnglishfleshThe soft tissue of the body, especially muscle...
2Middle Englishfleshflesh; A communion wafer; A muscle
3Old Englishflǣsċ
4Proto-West Germanicflaiskimeat, flesh
5Proto-Germanicflaiskimeat, flesh
6Proto-Indo-Europeanpleh₁ḱ-to tear, peel off; to tear, rend

via English HORSE

StepLanguageWordMeaning
1EnglishHORSEA poker variant consisting of five different...
2Middle EnglishhorseAlternative form of hors; Alternative form of...
3Old Englishhorshorse
4Proto-West Germanichrosshorse
5Proto-Germanichrussąhorse
6Proto-Indo-Europeanḱers-to run
Every word from Proto-Indo-European pleh₁ḱ-Every word from Proto-Germanic flaiskiEvery word from Proto-West Germanic flaiski