Where does “featherfoil” come from?

featherfoil (English) comes from English feather, from German feder, from Middle High German vëdere, from Old High German fedara, from Proto-West Germanic feþru, from Proto-Germanic feþrō, from Proto-Indo-European péth₂r̥, from Proto-Indo-European peth₂- — to spread out; to fly.

featherfoil (English): An aquatic plant with finely divided leaves

Definitions

  1. An aquatic plant with finely divided leaves

Ancestry of “featherfoil”, step by step

featherfoil traces back through two separate lines of ancestry.

via English feather

StepLanguageWordMeaning
1EnglishfeatherA branching, hair-like structure that grows on...
2Germanfederfeather
3Middle High Germanvëderefeather
4Old High Germanfedarafeather
5Proto-West Germanicfeþrufeather
6Proto-Germanicfeþrōfeather
7Proto-Indo-Europeanpéth₂r̥wing; feather
8Proto-Indo-Europeanpeth₂-to spread out; to fly

via English FOIL

StepLanguageWordMeaning
1EnglishFOILTo apply the FOIL algorithm to
2Middle Englishfoilenspoil a scent trail by crossing it
3Old Frenchfoulerto tread, to stamp, to full; tread on, trample
4Latinfullofuller
5Proto-Indo-Europeanbʰleh₃-bloom, flower
6Proto-Indo-Europeanbʰel-to sound; to speak, roar, bark; shiny, white; to...
7Proto-Indo-Europeanbʰōl-
Every word from Proto-Indo-European peth₂-