Where does “lớn mật” come from?

lớn mật (Vietnamese) comes from Vietnamese lớn, from French galon, from Latin galum, from Vulgar Latin *galla, from Gaulish gallā, from Proto-Germanic gallǭ, from Proto-Indo-European ǵʰelh₃- — to flourish; green, yellow.

Ancestry of “lớn mật”, step by step

lớn mật traces back through two separate lines of ancestry.

via Vietnamese lớn

Step	Language	Word	Meaning
1	Vietnamese	lớn	big; large; grown-up; adult; great; grand
2	French	galon	braid; stripe
3	Latin	galum	—
4	Vulgar Latin	*galla	—
5	Gaulish	gallā	vessel
6	Proto-Germanic	gallǭ	gall, bile
7	Proto-Indo-European	ǵʰelh₃-	to flourish; green, yellow

via Vietnamese mật

Step	Language	Word	Meaning
1	Vietnamese	mật	honey; concentrated sugarcane juice; molasses;...
2	Middle Chinese	密	—

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