Where does “acervatus” come from?

acervatus (Latin) comes from Latin acervō, from Latin acervus, from Proto-Indo-European h₂eḱ- — sharp.

Ancestry of “acervatus”, step by step

Step	Language	Word	Meaning
1	Latin	acervō	—
2	Latin	acervus	mass, heap, pile, stack; treasure; cluster
3	Proto-Indo-European	h₂eḱ-	sharp

acervatus — Etymology, Origin & Word History | Etymology Explorer