Where does “alongar” come from?

alongar (Occitan) comes from Vulgar Latin allongare, from Latin Ad, from Latin illic, from Latin ille, from Latin olle, from Proto-Italic *olnos — that.

alongar (Occitan): to lengthen, to elongate

Definitions

to lengthen, to elongate

Ancestry of “alongar”, step by step

alongar traces back through two separate lines of ancestry.

via Vulgar Latin allongare

Step	Language	Word	Meaning
1	Vulgar Latin	allongare	—
2	Latin	Ad	toward, to
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	that

via Occitan a

Step	Language	Word	Meaning
1	Occitan	a	to; at; a
2	Latin	ad	toward, to; up to; near, by, close by, at, to
3	Proto-Italic	ad	toward, to, on, up to, for
4	Proto-Indo-European	h₂éd	to, at

Every word from Proto-Italic *olnos →