Hesitate (verb)

1. To pause or hold back in uncertainty or indecision before doing something.
2. To be unwilling to do something.

Origin:

Mid 16th century (in the sense "be uncertain"): from latin haesitat- "stammered, hesitated", from the verb haesitare, from haesus "hesitant".

Examples:

1. I hesitate to ask for a raise.
2. He hesitated before answering the question.
3. She hesitated to take the job.
4. I hesitate to say this, but I think it's the truth.
5. They hesitate to invest in the new business.