Where does “Londonese” come from?

Londonese (English) comes from English London, from Middle English London, from Old English Lunden, from Latin Londinium, from Proto-Celtic *Londinyom, from Proto-Indo-European lendʰ- — land, heath; loins.

Londonese (English): The English language as spoken by Londoners

Definitions

  1. The English language as spoken by Londoners

Ancestry of “Londonese”, step by step

Londonese traces back through two separate lines of ancestry.

via English London

StepLanguageWordMeaning
1EnglishLondonSituated on the tidal River Thames in southeast England, with a metropolitan population of more than 13,000,000
2Middle EnglishLondon
3Old EnglishLundenLondon
4LatinLondiniumLondon
5Proto-Celtic*Londinyom
6Proto-Indo-Europeanlendʰ-land, heath; loins

via English ese

StepLanguageWordMeaning
1Englishesedude, man
2Mexican SpanisheseThe name of the Latin-script letter S; that;...
3Latinipsehimself, herself, itself, the very, the actual;...
4Proto-Italic*e(s)pesohimself, herself, itself
Every word from Proto-Indo-European lendʰ-Every word from Proto-Celtic *LondinyomEvery word from Latin Londinium