Where does “irritable” come from?

irritable (Danish) comes from Danish irritabel, from Latin irritabilis, from Latin irrito, from Latin irritus, from Latin ratus, from Latin rēōr, from Proto-Italic rēōr, from Proto-Indo-European h₂reh₁- — to fit, to fix, to put together.

irritable (Danish): definite of irritabel; plural of irritabel

Definitions

  1. definite of irritabel; plural of irritabel

Ancestry of “irritable”, step by step

StepLanguageWordMeaning
1Danishirritabelirritable; edgy
2Latinirritabilisirritable, irascible, short-tempered; excitable,...
3LatinirritoI incite, excite, stimulate, instigate, provoke;...
4Latinirritusinvalid, void, null and void; ineffective,...
5Latinratusconsidered, having been considered; established,...
6Latinrēōrto reckon, calculate
7Proto-Italicrēōrto reckon, to calculate; to think, to deem, to...
8Proto-Indo-Europeanh₂reh₁-to think, reason; to arrange
9Proto-Indo-Europeanh₂er-to fit, to fix, to put together
Every word from Proto-Indo-European h₂er-Every word from Proto-Indo-European h₂reh₁-Every word from Proto-Italic rēōr