Where does “vogliasi” come from?

vogliasi (Italian) comes from Italian voglia, from Latin volo, from Proto-Italic welō, from Proto-Indo-European welh₁- — to choose; to want.

Ancestry of “vogliasi”, step by step

Step	Language	Word	Meaning
1	Italian	voglia	wish, will, desire, longing; birthmark;...
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