Where does “polydisc” come from?

polydisc (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.

polydisc (English): A Cartesian product of discs

Definitions

  1. A Cartesian product of discs

Ancestry of “polydisc”, step by step

polydisc 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 disc

StepLanguageWordMeaning
1EnglishdiscA thin, flat, circular plate or similar object;...
2Frenchdisquedisc
3Latindiscusa discus, quoit; a dish shaped like a discus;...
4Proto-Italicdiskōlearn
5Proto-Italicdikskō
6Proto-Indo-Europeandi-dḱ-ské-ti
7Proto-Indo-Europeandeḱ-take; perceive
Every word from Proto-Indo-European pelH-Every word from Proto-Indo-European polH-yósEvery word from Proto-Hellenic poľľós
polydisc — Etymology, Origin & Word History | Etymology Explorer