Where does “凱恩斯” come from?

凱恩斯 (Chinese) comes from English Cairns, from Scots cairn, from Scottish Gaelic carn, from Old Irish carn, from Proto-Celtic karnos, from Proto-Indo-European ḱerh₂- — head, top; horn.

Ancestry of “凱恩斯”, step by step

Step	Language	Word	Meaning
1	English	Cairns	named after William Cairns
2	Scots	cairn	—
3	Scottish Gaelic	carn	heap of stones
4	Old Irish	carn	—
5	Proto-Celtic	karnos	cairn; horn
6	Proto-Indo-European	ḱerh₂-	head, top; horn

Every word from Proto-Indo-European ḱerh₂- →Every word from Proto-Celtic karnos →Every word from Old Irish carn →