Where does “cylchdroi” come from?

cylchdroi (Welsh) comes from Welsh troi, from Welsh i, from Middle Welsh y, from Old Welsh ir, from Proto-Celtic sindos, from Proto-Indo-European sḗm, from Proto-Indo-European sem- — together, one.

cylchdroi (Welsh): to turn in a circle, to circumvolve, to revolve

Definitions

  1. to turn in a circle, to circumvolve, to revolve

Ancestry of “cylchdroi”, step by step

cylchdroi traces back through two separate lines of ancestry.

via Welsh troi

StepLanguageWordMeaning
1Welshtroito turn; to bend, to curve; to overturn, to flip
2WelshiI, me; to, for; that
3Middle Welshyhis, its with reference to a masculine noun; triggers soft mutation of following consonant
4Old Welshirthe
5Proto-Celticsindosthis
6Proto-Indo-Europeansḗmone
7Proto-Indo-Europeansem-together, one

via Welsh cylch

StepLanguageWordMeaning
1Welshcylchcircle, ring; orbit, revolution, circuit tour;...
Every word from Proto-Indo-European sem-