Where does “cyflymydd” come from?

cyflymydd (Welsh) comes from Welsh cyflymu, from Welsh cyflym, 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 — to bend; curve; arch; vault; to bow, bend, arch,...

cyflymydd (Welsh): accelerator, throttle, gas pedal

Definitions

  1. accelerator, throttle, gas pedal

Ancestry of “cyflymydd”, step by step

StepLanguageWordMeaning
1Welshcyflymuto speed up, accelerate
2Welshcyflymfast, quick
3Welshcyf-together, co-, con-; equal, similar, equi-;...
4Middle Welshkyu-con-, with
5Proto-Brythonicköβ̃-Prefix with associative meaning
6Proto-Celtickom-with, together
7Proto-Indo-Europeanḱómbeside, near, by, with
8Proto-Indo-EuropeanḱeDeictic particle, here; Post-positional...
9Middle Englishkyt
10Germankittputty certain kinds of cement used for fixing e.g. window panes
11Old High Germankuti
12Proto-West Germanickwidugum, resin
13Proto-Germanickweduzresin
14Proto-Indo-Europeangʷet-resin, gum; to say, speak
15Proto-Indo-Europeangū-to bend; curve; arch; vault; to bow, bend, arch,...
Every word from Proto-Indo-European gū-