loro resero

made

→ rendere
res make; render + ero 3rd-person plural past tense
verb · 3rd-person plural, past tense Rare #46,160
made Often used to mean “made someone or something become” a certain way.
IT: Le sue parole resero tutti felici.
EN: His words made everyone happy.
Conjugation of rendere
SingularPlural
Second renderti —
Indicative past
SingularPlural
First resi —
Third rese resero

Gli resero la vita un inferno, solo perché non era del partito.

They made his life hell, just because he wasn't a member of the party.

— Good Bye, Lenin! (2003)

Resero chiara la loro posizione.

They made their position clear.

Le notizie lo resero triste.

The news made him sad.

Le notizie lo resero felice.

The news made him happy.