Where does “Dorcha” come from?

Dorcha (English) comes from Irish dorcha, from Old Irish dorchae — dark, gloomy; obscure; gloomy, morose.

Ancestry of “Dorcha”, step by step

Dorcha traces back through two separate lines of ancestry.

via Irish dorcha

StepLanguageWordMeaning
1Irishdorchadark; hidden, secret, mysterious; shy
2Old Irishdorchaedark, gloomy; obscure; gloomy, morose

via Scottish Gaelic Dorcha

StepLanguageWordMeaning
1Scottish GaelicDorchadark
Every word from Old Irish dorchaeEvery word from Irish dorcha