Where does “hasa” come from?

hasa (Old Frisian) comes from Proto-West Germanic hasō, from Proto-Germanic *hesô, from Proto-Indo-European ḱeh₂s- — to lead, teach, educate; grey, hare.

Ancestry of “hasa”, step by step

StepLanguageWordMeaning
1Proto-West Germanichasōhare
2Proto-Germanic*hesôhare
3Proto-Indo-Europeanḱeh₂s-to lead, teach, educate; grey, hare

Words derived from “hasa

Every word from Proto-Indo-European ḱeh₂s-Every word from Proto-Germanic *hesôEvery word from Proto-West Germanic hasō