Where does “ロン” come from?

ロン (Japanese) comes from Japanese ロンドン, 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.

Ancestry of “ロン”, step by step

StepLanguageWordMeaning
1JapaneseロンドンLondon
2EnglishLondonSituated on the tidal River Thames in southeast England, with a metropolitan population of more than 13,000,000
3Middle EnglishLondon
4Old EnglishLundenLondon
5LatinLondiniumLondon
6Proto-Celtic*Londinyom
7Proto-Indo-Europeanlendʰ-land, heath; loins
Every word from Proto-Indo-European lendʰ-Every word from Proto-Celtic *LondinyomEvery word from Latin Londinium
ロン — Etymology, Origin & Word History | Etymology Explorer