Where does “polymethine” come from?

polymethine (English) comes from English poly, from Latin polium, from Latin polion, from Ancient Greek πόλιον, from Ancient Greek πολιός, from Proto-Hellenic poľľós, from Proto-Indo-European polH-yós, from Proto-Indo-European pelH- — pale, gray.

polymethine (English): A compound made up from an odd number of methine...

Definitions

  1. A compound made up from an odd number of methine...

Ancestry of “polymethine”, step by step

polymethine traces back through two separate lines of ancestry.

via English poly

StepLanguageWordMeaning
1EnglishpolyPolytechnic; Polyethylene; Polyurethane
2LatinpoliumAlternative form of polion
3LatinpolionA strong-smelling plant, perhaps Teucrium...
4Ancient Greekπόλιονfelty germander
5Ancient Greekπολιόςgrey, grizzled, grizzly; bright, clear, serene; a...
6Proto-Hellenicpoľľósgrey
7Proto-Indo-EuropeanpolH-yós
8Proto-Indo-EuropeanpelH-pale, gray

via English methine

StepLanguageWordMeaning
1EnglishmethineThe tervalent functional group, -CH=, having one...
Every word from Proto-Indo-European pelH-Every word from Proto-Indo-European polH-yósEvery word from Proto-Hellenic poľľós