Where does “Jarrahdale” come from?

Jarrahdale (English) comes from English Dale, from Middle English dale, from Old English dæl, from Proto-West Germanic daili, from Proto-Germanic dailiz, from Proto-Indo-European dʰayl- — part, watershed.

Ancestry of “Jarrahdale”, step by step

Jarrahdale traces back through two separate lines of ancestry.

via English Dale

StepLanguageWordMeaning
1EnglishDalefor someone living in a dale
2Middle EnglishdaleA dale or valley; A hole or barrow
3Old Englishdælpart; valley
4Proto-West Germanicdailipart
5Proto-Germanicdailizpart, portion, deal
6Proto-Indo-Europeandʰayl-part, watershed

via English jarrah

StepLanguageWordMeaning
1EnglishjarrahEucalyptus marginata, a eucalypt tree occurring...
Every word from Proto-Indo-European dʰayl-