Where does “εἴτε” come from?

εἴτε (Ancient Greek) comes from Ancient Greek τε, from Proto-Hellenic kʷe, from Proto-Indo-European -kʷe — and; Forms distributives from interrogatives.

εἴτε (Ancient Greek): either...or, whether..or; 800 BCE – 600 BCE,...

Definitions

either...or, whether..or; 800 BCE – 600 BCE,...

Ancestry of “εἴτε”, step by step

εἴτε traces back through two separate lines of ancestry.

via Ancient Greek τε

Step	Language	Word	Meaning
1	Ancient Greek	τε	and, also or untranslatable
2	Proto-Hellenic	kʷe	—
3	Proto-Indo-European	-kʷe	and; Forms distributives from interrogatives

via Ancient Greek εἰ

Step	Language	Word	Meaning
1	Ancient Greek	εἰ	if
2	Proto-Indo-European	h₁ey	—

Words derived from “εἴτε”

είτε

Every word from Proto-Indo-European -kʷe →Every word from Proto-Hellenic kʷe →Every word from Ancient Greek τε →