flaquear

Es una gran vida si no flaqueas.	It's a great life if you don't weaken.
Es un mundo bueno si no flaqueas.	It's a good world if you don't weaken.
Si flaqueas en día de adversidad, tu fuerza quedará reducida (Proverbios 24:10).	If thou faint in the day of adversity, thy strength is small. (Proverbs 24:10)
Cuando te escucho siento que flaqueas en el control.	What I heard was just a lack of control.
Lucy, por favor. Si flaqueas ahora, no podrás seguir viviendo contigo misma.	Lucy, please, if you buckle now, you won't be able to live with yourself.
Si flaqueas, los cielos seguirán metiéndose contigo... y no serás capaz de trabajar.	If you waver, the heavens will keep picking on you, and you won't be able to work.
Te di la oportunidad perfecta para que te lo saques de encima y flaqueas.	I gave you a perfect window to throw him out of, and you went limp.
Tú sabes que la persistencia es una cualidad para la gran victoria, ya que ahora tú nunca flaqueas.	You know persistence is a trait for great victory, for you never waver now.
Serás dejado a ti mismo, y pobre de ti si flaqueas u olvidas el camino—nunca regresarás.	You will be left to yourself, and woe to you if you weaken or forget the way--you will never get back.