Where does “spathe” come from?

spathe (English) comes from Latin spatha, from Ancient Greek σπάθη, from Proto-Indo-European sph₂-dʰ-.

spathe (English): A large bract that envelops or subtends a whole...

Definitions

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