Chary (adjective)

1. Showing caution; reserved.
2. Careful; circumspect.

Origin:

From middle english, from old english cearig ("anxious, careful"), from proto-germanic *karǭgaz ("anxious, careful"), from proto-germanic *karōną ("to care"), from proto-indo-european *ǵer- ("to shout, call").

Examples:

1. He was chary of making a commitment.
2. She was chary of trusting anyone.
3. The investors were chary of putting their money in the new project.
4. The manager was chary of giving out too much information.
5. He was chary of taking risks.