peter out (verb)

1. After dancing all night, their energy petered out and they decided to go home.

2. In the final battle scene, the hero's strength starts to peter out but he pushes through to defeat the villain.

3. The protagonist's determination petered out as he faced numerous obstacles on his journey.

4. The minimalist design of the room petered out as clutter started accumulating over time.

1. In the final chapter of the science fiction novel, the hero's superpowers peter out just as he's about to defeat the villain.

2. In the anime series, the magical girl's magical abilities gradually peter out as she uses them too often without rest.

3. According to the religious legend, the power of the ancient artifact would peter out if it fell into the wrong hands.

4. In the romantic comedy film, the relationship between the two main characters starts to peter out after they realize they have nothing in common.