Confine (verb)

1. To limit the movement, activity, or freedom of someone or something.
2. To keep someone or something within certain limits or boundaries.
3. To restrict or prevent the spread or growth of something.

Origin:

Derived from the latin word 'confinare' meaning 'to limit, to surround'.

Examples:

1. The disease has been confined to a small area.
2. She was confined to her bed due to her illness.
3. The authorities confined the protesters to a designated area.