Where does “islawr” come from?

islawr (Welsh) comes from Welsh llawr, from Proto-Brythonic llọr, from Proto-Celtic ɸlārom, from Proto-Indo-European pleh₂ros, from Proto-Indo-European pleh₂- — flat.

islawr (Welsh): basement, cellar

Definitions

  1. basement, cellar

Ancestry of “islawr”, step by step

StepLanguageWordMeaning
1Welshllawrfloor, ground; earth; storey
2Proto-Brythonicllọrfloor
3Proto-Celticɸlāromfloor
4Proto-Indo-Europeanpleh₂rosflat; floor
5Proto-Indo-Europeanpleh₂-flat
Every word from Proto-Indo-European pleh₂- →Every word from Proto-Indo-European pleh₂ros →Every word from Proto-Celtic ɸlārom →