Where does “voar” come from?

voar (Old Portuguese) comes from Latin volare, from Latin volo, from Proto-Italic welō, from Proto-Indo-European welh₁- — to choose; to want.

Ancestry of “voar”, step by step

Step	Language	Word	Meaning
1	Latin	volare	inflection of volō: ## present active...
2	Latin	volo	I wish; I want; I mean, I intend
3	Proto-Italic	welō	to want, will
4	Proto-Indo-European	welh₁-	to choose; to want