Where does “ala” come from?

ala (Old Spanish) comes from Old Spanish a, from Latin Ad, from Latin illic, from Latin ille, from Latin olle, from Proto-Italic *olnos.

ala (Old Spanish): wing

Definitions

Step	Language	Word	Meaning
1	Old Spanish	a	to, toward, in, at
2	Latin	Ad	—
3	Latin	illic	he, she, it, yonder, that, overthere; in that...
4	Latin	ille	that; those; "; demonstrative pronoun "; that...
5	Latin	olle	Archaic form of ille
6	Proto-Italic	*olnos	—