Where does “calch” come from?

calch (Middle Welsh) comes from Proto-Brythonic *kalx, from Latin calx, from Ancient Greek χάλιξ — small stone, pebble; gravel, rubble.

Ancestry of “calch”, step by step

StepLanguageWordMeaning
1Proto-Brythonic*kalx—
2Latincalxlimestone; chalk; the finish line
3Ancient Greekχάλιξsmall stone, pebble; gravel, rubble

Words derived from “calch”

Every word from Ancient Greek χάλιξ →Every word from Latin calx →Every word from Proto-Brythonic *kalx →