agotarse bedeutet auf Englisch

dwindle [dwindled, dwindling, dwindles]▼((intransitive) to decrease, shrink, vanish)
verb
[UK: ˈdwɪn.dl̩] [US: ˈdwɪn.dl̩]

wear thin▼(to lessen or weaken over time, as from overuse)
verb