the rest
Marie va passer le restant de ses jours en prison.
Marie will spend the rest of her days in prison.
Il va payer le restant de ses jours.
He will pay for it with the rest of his life.
C'est un soir important, qui va te suivre pour le restant de ta vie.
It’s an important evening, one that will stay with you for the rest of your life.
— Perfetti sconosciuti (2016)
Et j'ai compris que je passerais le restant de mes jours avec lui.
And I knew I would spend the rest of my life with him.
— Retour vers le futur (1985)