affaiblir bedeutet auf Englisch

weaken [weakened, weakening, weakens]▼◼◼◼(to make weaker)
verb
[UK: ˈwiːkən] [US: ˈwiːkən]The enemy is weakened! = L'ennemi est affaibli!

impair [impaired, impairing, impairs]▼◼◼◻(have a diminishing effect on)
verb
[UK: ɪm.ˈpeə(r)] [US: ˌɪm.ˈper]Memory is impaired unless you exercise it. = La mémoire s'affaiblit si on ne l'exerce pas.

enfeeble [enfeebled, enfeebling, enfeebles]▼◼◻◻(make feeble)
verb
[UK: ɪn.ˈfiːb.l̩] [US: en.ˈfiːb.l̩]

flag [flagged, flagging, flags]▼◼◻◻(weaken)
verb
[UK: flæɡ] [US: ˈflæɡ]

enervate [enervated, enervating, enervates]▼◼◻◻(to reduce strength or energy; debilitate)
verb
[UK: ˈe.nə.veɪt] [US: ˈe.nə.veɪt]

unnerve [unnerved, unnerving, unnerves]▼(deprive of nerve, force or strength)
verb
[UK: ˌʌn.ˈnɜːv] [US: ə.ˈnɝːv]

weaken [weakened, weakening, weakens]▼◼◼◼(to become weaker)
verb
[UK: ˈwiːkən] [US: ˈwiːkən]