remembered, held up, detained, held back
C'est la pitié qui a retenu la main de Bilbon.
It was pity that stayed Bilbo's hand.
— Le Seigneur des anneaux : La Communauté de l'anneau (2001)
Excusez-moi, Mme Musquin, les enfants m'ont retenu.
I'm sorry, Mrs. Musquin, the children held me up.
— Santa Claus Is a Stinker (1982)
Cette affaire a retenu notre attention.
This case has caught our attention.
— Ghost in the Shell (1995)
Ziri a toujours retenu ce numéro.
Ziri has always remembered this number.
Ce que vous direz sera retenu contre vous.
What you say will be held against you.