weaken
US /ˈwiː.kən/
UK /ˈwiː.kən/

1.
verzwakken
make or become weaker in power, resolve, or physical strength
:
•
The illness had weakened him considerably.
De ziekte had hem aanzienlijk verzwakt.
•
The bridge was weakened by the constant heavy traffic.
De brug werd verzwakt door het constante zware verkeer.