Where does “à rebrousse-poil” come from?

à rebrousse-poil (French) comes from French poil, from Old French peil, from Latin pīlus, from Latin pīlum, from Proto-Italic pistlom, from Proto-Indo-European pis-tlo-, from Proto-Indo-European peys- — to grind, to crush.

à rebrousse-poil (French): the wrong way, against the grain

Definitions

  1. the wrong way, against the grain

Ancestry of “à rebrousse-poil”, step by step

à rebrousse-poil traces back through two separate lines of ancestry.

via French poil

StepLanguageWordMeaning
1Frenchpoilhair; bristle
2Old Frenchpeil
3Latinpīlusa hair
4Latinpīluma pounder, pestle
5Proto-Italicpistlom
6Proto-Indo-Europeanpis-tlo-
7Proto-Indo-Europeanpeys-to grind, to crush

via French rebrousser

StepLanguageWordMeaning
1Frenchrebrousserto brush over
2Middle Frenchrebourser
3Frenchrebourschurlish, disagreeable; opposite, reverse
4Late Latinreburruswith bristling hair
Every word from Proto-Indo-European peys-Every word from Proto-Indo-European pis-tlo-Every word from Proto-Italic pistlom