Where does “ヘーゼルナッツ” come from?

ヘーゼルナッツ (Japanese) comes from English hazelnut — The fruit of the hazel tree.

ヘーゼルナッツ (Japanese): hazelnut

Definitions

Step	Language	Word	Meaning
1	English	hazelnut	The fruit of the hazel tree

ヘーゼルナッツ — Etymology, Origin & Word History | Etymology Explorer