Where does “uerna” come from?

uerna (Vulgar Latin) comes from Proto-Celtic wernā, from Proto-Indo-European wern- — alder.

Ancestry of “uerna”, step by step

StepLanguageWordMeaning
1Proto-Celticwernāalder
2Proto-Indo-Europeanwern-alder
Every word from Proto-Indo-European wern- →Every word from Proto-Celtic wernā →