Where does “tranqui” come from?
tranqui (Spanish) comes from Spanish tranquilo, from Latin Tranquillus, from Latin trānsquīlus, from Latin quiēs, from Proto-Italic kʷiētis, from Proto-Indo-European kʷyéh₁tis, from Proto-Indo-European kʷyeh₁- — to rest; rest, peace.
tranqui (Spanish): relax!, stay cool!
Ancestry of “tranqui”, step by step