Where does “frauga” come from?

frauga (Old Portuguese) comes from Vulgar Latin frabica, from Latin fābrica, from Latin faber, from Proto-Italic faβros, from Proto-Italic θaβros.

Ancestry of “frauga”, step by step

Step	Language	Word	Meaning
1	Vulgar Latin	frabica	—
2	Latin	fābrica	—
3	Latin	faber	artisan, craftsman, architect, creator, maker,...
4	Proto-Italic	faβros	craftsman
5	Proto-Italic	θaβros	—

frauga — Etymology, Origin & Word History | Etymology Explorer