Where does “quieto” come from?
quieto (Spanish) comes from Latin quiētus, from Latin quiēscō, from Latin quiēs, from Proto-Italic kʷiētis, from Proto-Indo-European kʷyéh₁tis, from Proto-Indo-European kʷyeh₁- — to rest; rest, peace.
quieto (Spanish): calm; still
Ancestry of “quieto”, step by step