Prehistoric (adjective)

Relating to or existing in a time before recorded history.

Origin:

Derived from the words 'pre-' meaning 'before' and 'historic' meaning 'having to do with history'.

Examples:

1. The museum exhibits various artifacts from the prehistoric era.
2. Some experts believe that dinosaurs lived during the prehistoric period.
3. The caves in the area have evidence of prehistoric human habitation.
4. The discovery of the fossils has provided new insight into prehistoric life.
5. Many prehistoric animals became extinct due to climate change.