Where does “*esel” come from?

*esel (Old Frisian) comes from Proto-West Germanic asil, from Latin asellus, from Latin asinus, from Latin acinus, from Latin acies, from Proto-Indo-European h₂eḱ- — sharp.

Ancestry of “*esel”, step by step

Step	Language	Word	Meaning
1	Proto-West Germanic	asil	donkey
2	Latin	asellus	Small or young ass or donkey
3	Latin	asinus	a donkey, an ass; an ass, an idiot, a dolt, a...
4	Latin	acinus	a berry, especially the grape; the seed of a...
5	Latin	acies	sharp edge or point; battle line; battle,...
6	Proto-Indo-European	h₂eḱ-	sharp

Words derived from “*esel”

ezel

Every word from Proto-Indo-European h₂eḱ- →Every word from Latin acies →Every word from Latin acinus →