"Enmity" vs. "hostility": shades of antagonism

What is similar?
Both "enmity" and "hostility" refer to feelings of ill-will, animosity, or opposition towards someone or something. They describe negative attitudes that can lead to conflict or aggression.
What is different?
"Enmity" implies a deep-seated, long-standing mutual hatred or ill-will between parties, often enduring over time. It emphasizes a more profound and enduring state of mutual animosity. "Hostility" refers to unfriendly or antagonistic behavior or attitudes that may not be as deeply rooted or mutual. It can be one-sided and may also refer to acts of warfare or aggression in a broader context.
Which one is more common?

Examples of usage
Enmity- The longstanding enmity between the two families had lasted for generations.
- Despite their past enmity, they decided to work together for the common good.
- Political enmity can hinder progress and collaboration.
- She was surprised by the hostility in his voice.
- The proposal was met with hostility from the committee members.
- They called for a ceasefire to end the hostilities in the region.