Where does “ectoparasiticide” come from?

ectoparasiticide (English) comes from English ectoparasite, from English parasite, from Middle French parasite, from Latin parasītus, from Ancient Greek παράσιτος, from Ancient Greek παρά, from Latin verēdus, from Gaulish werēdos — horse.

ectoparasiticide (English): Any pesticide designed to kill parasites that live on the exterior of a host

Definitions

  1. Any pesticide designed to kill parasites that live on the exterior of a host

Ancestry of “ectoparasiticide”, step by step

StepLanguageWordMeaning
1EnglishectoparasiteA parasite that lives on the surface of a host...
2EnglishparasiteA person who lives on other people's efforts or...
3Middle Frenchparasite
4Latinparasītusguest
5Ancient Greekπαράσιτοςone who eats at the table of another, parasite;...
6Ancient Greekπαρά
7LatinverēdusA fast or light breed of horse; courier's horse; hunter
8Gaulishwerēdoshorse
9Proto-Celtic*uɸoreidoshorse
Every word from Proto-Celtic *uɸoreidosEvery word from Gaulish werēdosEvery word from Latin verēdus