Where does “cyfundrefn” come from?

cyfundrefn (Welsh) comes from Welsh cyfun, from Welsh cyf-, from Middle Welsh kyu-, from Proto-Brythonic köβ̃-, from Proto-Celtic kom-, from Proto-Indo-European ḱóm, from Proto-Indo-European ḱe, from Middle English kyt — to bend; curve; arch; vault; to bow, bend, arch,...

cyfundrefn (Welsh): system, regime

Definitions

  1. system, regime

Ancestry of “cyfundrefn”, step by step

cyfundrefn traces back through two separate lines of ancestry.

via Welsh cyfun

StepLanguageWordMeaning
1Welshcyfunconcordant, agreeing, unanimous
2Welshcyf-together, co-, con-; equal, similar, equi-;...
3Middle Welshkyu-con-, with
4Proto-Brythonicköβ̃-Prefix with associative meaning
5Proto-Celtickom-with, together
6Proto-Indo-Europeanḱómbeside, near, by, with
7Proto-Indo-EuropeanḱeDeictic particle, here; Post-positional...
8Middle Englishkyt
9Germankittputty certain kinds of cement used for fixing e.g. window panes
10Old High Germankuti
11Proto-West Germanickwidugum, resin
12Proto-Germanickweduzresin
13Proto-Indo-Europeangʷet-resin, gum; to say, speak
14Proto-Indo-Europeangū-to bend; curve; arch; vault; to bow, bend, arch,...

via Welsh trefn

StepLanguageWordMeaning
1Welshtrefnorder, sequence, routine
2Proto-Celtictrebādwelling
3Proto-Indo-Europeantreb-settlement, dwelling; to build, dwell

Words derived from “cyfundrefn

Every word from Proto-Indo-European gū-