tranquilidad
From LSJ
Ὁ αὐτὸς ἔφησε τὸν μὲν ὕπνον ὀλιγοχρόνιον θάνατον, τὸν δὲ θάνατον πολυχρόνιον ὕπνον → Plato said that sleep was a short-lived death but death was a long-lived sleep
Spanish > Greek
ἀπραγμοσύνη, ἄνεσις, γαλήνη, τὸ ἀμέριμνον, ἀρρεψία, ἀσφάλεια, ἀμεριμνία, τὸ ἀτρεμές, ἀπραγία, ἀτρεμία, ἀφίημι, ἀοχλησία, ἀνοχλησία, ἔασις, τὸ ἄσαλον, τὸ ἀνεπίβουλον, τὸ ἀνενόχλητον