Where does “Newcastle-under-Lyme” come from?

Newcastle-under-Lyme (English) comes from Proto-Celtic limos, from Proto-Indo-European h₁élem — mountain elm.

Ancestry of “Newcastle-under-Lyme”, step by step

StepLanguageWordMeaning
1Proto-Celticlimoselm
2Proto-Indo-Europeanh₁élemmountain elm
Every word from Proto-Indo-European h₁élem →Every word from Proto-Celtic limos →
Newcastle-under-Lyme — Etymology, Origin & Word History | Etymology Explorer