jīn is the 'endure / contain' reading — about what the subject can bear, physically or emotionally. It almost always appears in fixed compounds:
不禁 (cannot help [doing something]),
禁不住 (can't hold back; can't bear),
禁不起 (unable to withstand — pressure, scrutiny),
情不自禁 (overcome by emotion),
忍俊不禁 (can't help laughing),
弱不禁风 (too frail to stand a breeze).