Where does “pyorrheic” come from?

pyorrheic (English) comes from English pyorrhea, from English -rrhea, from Ancient Greek ῥοία, from Ancient Greek ῥέω, from Proto-Indo-European srew-, from Proto-Indo-European ser- — to flow; to guard; to bind, to tie together.

pyorrheic (English): Of or pertaining to pyorrheas; characteristic of...

Definitions

  1. Of or pertaining to pyorrheas; characteristic of...

Ancestry of “pyorrheic”, step by step

pyorrheic traces back through two separate lines of ancestry.

via English pyorrhea

StepLanguageWordMeaning
1EnglishpyorrheaAn inflammation of the gums in which the teeth...
2English-rrheaflowing
3Ancient Greekῥοίαflow, flux
4Ancient GreekῥέωI flow, stream, run, gush; I let flow, pour; I...
5Proto-Indo-Europeansrew-to flow, stream
6Proto-Indo-Europeanser-to flow; to guard; to bind, to tie together

via English ic

StepLanguageWordMeaning
1Englishicrelated or pertaining to; having the character of
Every word from Proto-Indo-European ser-Every word from Proto-Indo-European srew-Every word from Ancient Greek ῥέω