Where does “Welshism” come from?

Welshism (English) comes from English Welsh, from Middle English Walsch, from Old English wælisc, from Proto-Germanic walhaz, from Latin Volcae, from Proto-Celtic wolkos, from Proto-Indo-European welg- — wet, damp.

Welshism (English): A characteristically Welsh phrase, idiom, etc

Definitions

  1. A characteristically Welsh phrase, idiom, etc

Ancestry of “Welshism”, step by step

Welshism traces back through two separate lines of ancestry.

via English Welsh

StepLanguageWordMeaning
1EnglishWelshBritish; pertaining to the Celtic peoples who...
2Middle EnglishWalschWelsh; from or of Wales or its people; unusual,...
3Old Englishwælisc
4Proto-Germanicwalhazforeigner, non-Germanic person
5LatinVolcaea Gallic tribal confederation; name of a Celtic...
6Proto-Celticwolkoshawk
7Proto-Indo-Europeanwelg-wet, damp

via English ism

StepLanguageWordMeaning
1EnglishismAn ideology, system of thought, or practice that...
2English-ismUsed to form nouns of action or process or result...
3Latin-ismus-ism
4Ancient Greek-ισμόςForms abstract nouns
5Ancient Greek-μόςForms abstract nouns
6Proto-Indo-European-mósCreates action/result nouns from verb stems
Every word from Proto-Indo-European welg-