Where does “quietud” come from?
quietud (Spanish) comes from Medieval Latin quietudo, 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.
quietud (Spanish): calm; stillness
Ancestry of “quietud”, step by step