Where does “gastito” come from?

gastito (Spanish) comes from Spanish gasto, from Latin vastō, from Latin vastus, from Proto-Celtic wāstos, from Proto-Indo-European h₁weh₂- — to leave, abandon, give out.

Ancestry of “gastito”, step by step

Step	Language	Word	Meaning
1	Spanish	gasto	expenditure, cost; spending, expense
2	Latin	vastō	to devastate, destroy, ravage, lay waste
3	Latin	vastus	Empty, unoccupied, i.e. waste, desert; Desolate,...
4	Proto-Celtic	wāstos	empty
5	Proto-Indo-European	h₁weh₂-	to leave, abandon, give out

Every word from Proto-Indo-European h₁weh₂- →Every word from Proto-Celtic wāstos →Every word from Latin vastus →