Where does “frimbia” come from?

frimbia (Vulgar Latin) comes from Latin fimbriae, from Latin fimbria — fringe, border, edge.

Ancestry of “frimbia”, step by step

Step	Language	Word	Meaning
1	Latin	fimbriae	fibres, threads, shreds, fringe; nominative...
2	Latin	fimbria	fringe, border, edge

frimbia — Etymology, Origin & Word History | Etymology Explorer