Where does “hasel” come from?

hasel (Middle High German) comes from Old High German hasal, from Old Norse hasl, from Proto-Germanic *haslaz, from Proto-Celtic koslos, from Proto-Indo-European koselos — hazel.

Ancestry of “hasel”, step by step

Step	Language	Word	Meaning
1	Old High German	hasal	—
2	Old Norse	hasl	—
3	Proto-Germanic	*haslaz	—
4	Proto-Celtic	koslos	hazel
5	Proto-Indo-European	koselos	hazel

Every word from Proto-Indo-European koselos →

hasel — Etymology, Origin & Word History | Etymology Explorer