Vary (verb)

1. To make or become different.
2. To change or cause to change in some characteristic or aspect.
3. To differ or cause to differ in some way.

Origin:

Late middle english: from old french varier, from latin variare "make different", from varius "varied".

Examples:

1. The weather varies from day to day.
2. The prices vary depending on the season.
3. His mood varies depending on the situation.
4. The flavors of the ice cream vary from chocolate to strawberry.
5. The intensity of the pain varies from person to person.