Where does “Esbo” come from?

Esbo (Swedish) comes from Middle Irish espa, from Latin spatha, from Ancient Greek σπάθη, from Proto-Indo-European sph₂-dʰ-.

Ancestry of “Esbo”, step by step

Step	Language	Word	Meaning
1	Middle Irish	espa	—
2	Latin	spatha	spatula, spattle; spatha; a long, two-edged,...
3	Ancient Greek	σπάθη	any broad blade, of wood or metal
4	Proto-Indo-European	sph₂-dʰ-	—

Esbo — Etymology, Origin & Word History | Etymology Explorer