Where does “laceria” come from?

laceria (Vulgar Latin) comes from Latin lacer, from Proto-Indo-European *leh₂k-.

Ancestry of “laceria”, step by step

Step	Language	Word	Meaning
1	Latin	lacer	lacerated, mangled, torn to pieces
2	Proto-Indo-European	*leh₂k-	—

laceria — Etymology, Origin & Word History | Etymology Explorer