Where does “gallozza” come from?

gallozza (Italian) comes from Italian galla, from Latin galla, from Gaulish gallā, from Proto-Germanic gallǭ, from Proto-Indo-European ǵʰelh₃- — to flourish; green, yellow.

Ancestry of “gallozza”, step by step

Step	Language	Word	Meaning
1	Italian	galla	gall; acorn; round pill
2	Latin	galla	the oak apple, gall-nut; a harsh, sour kind of...
3	Gaulish	gallā	vessel
4	Proto-Germanic	gallǭ	gall, bile
5	Proto-Indo-European	ǵʰelh₃-	to flourish; green, yellow

Every word from Proto-Indo-European ǵʰelh₃- →Every word from Proto-Germanic gallǭ →Every word from Gaulish gallā →