Where does “areísco” come from?

areísco (Portuguese) comes from Portuguese areia, from Old Portuguese arẽa, from Latin arēna, from Latin harēna, from Latin hasena.

Ancestry of “areísco”, step by step

Step	Language	Word	Meaning
1	Portuguese	areia	sand
2	Old Portuguese	arẽa	sand
3	Latin	arēna	—
4	Latin	harēna	—
5	Latin	hasena	—

areísco — Etymology, Origin & Word History | Etymology Explorer