Where does “Welshie” come from?

Welshie (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.

Ancestry of “Welshie”, step by step

Welshie 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 ie

StepLanguageWordMeaning
1EnglishieAlternative form of i.e
Every word from Proto-Indo-European welg-