Where does “quietude” come from?
quietude (Portuguese) comes from Late 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.
quietude (Portuguese): quiet
Ancestry of “quietude”, step by step