Late-night (adjective)

1. Happening or occurring in the late hours of the night.
2. Done or performed in the late hours of the night.

Origin:

The phrase 'late-night' is a combination of the words 'late' and 'night', meaning 'occurring or taking place in the late hours of the night.'.

Examples:

1. She enjoyed watching late-night TV shows.
2. The city was alive with late-night revelers.
3. He had a craving for late-night snacks.
4. The late-night party was still in full swing.
5. She made a late-night trip to the store for milk.