Where does “espaldar” come from?

espaldar (Spanish) comes from Spanish espalda, from Old Spanish espalda, from Vulgar Latin spatla, from Latin spatula, from Latin spatha, from Ancient Greek σπάθη, from Proto-Indo-European sph₂-dʰ-.

espaldar (Spanish): back, posterior

Definitions

back, posterior

Ancestry of “espaldar”, step by step

Step	Language	Word	Meaning
1	Spanish	espalda	back; backstroke
2	Old Spanish	espalda	back
3	Vulgar Latin	spatla	—
4	Latin	spatula	a broad, flat piece; a little palm frond; a...
5	Latin	spatha	spatula, spattle; spatha; a long, two-edged,...
6	Ancient Greek	σπάθη	any broad blade, of wood or metal
7	Proto-Indo-European	sph₂-dʰ-	—

Words derived from “espaldar”

respaldar
espaldarazo
respaldo

Every word from Proto-Indo-European sph₂-dʰ- →Every word from Ancient Greek σπάθη →Every word from Latin spatha →