Where does “polygroove” come from?

polygroove (English) comes from English groove, from Middle English grov, from Middle Dutch groeve, from Old Dutch gruova, from Proto-West Germanic *grōbu, from Proto-Germanic grōbō, from Proto-Germanic grabaną, from Proto-Indo-European gʰrābʰ- — to dig, scratch, scrape.

Ancestry of “polygroove”, step by step

polygroove traces back through two separate lines of ancestry.

via English groove

StepLanguageWordMeaning
1EnglishgrooveA long, narrow channel or depression; e.g., such...
2Middle Englishgrov
3Middle Dutchgroeve
4Old Dutchgruovahole, ditch, pit
5Proto-West Germanic*grōbu
6Proto-Germanicgrōbōhole, ditch, pit
7Proto-Germanicgrabanąto dig; to engrave, scratch
8Proto-Indo-Europeangʰrābʰ-to dig, scratch, scrape

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
Every word from Proto-Indo-European gʰrābʰ-Every word from Proto-Germanic grabanąEvery word from Proto-Germanic grōbō