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