Abstain (verb)

To refrain from doing something, especially from an activity or pleasure as an act of self-discipline.

Origin:

Middle english abstenen, from latin abstinēre, abstinuisse, from abs- + tenēre to hold.

Examples:

1. He decided to abstain from alcohol for the month.
2. She abstained from voting on the issue.
3. The committee members decided to abstain from making a decision.
4. I'm going to abstain from eating chocolate for a while.
5. I'm going to abstain from using my phone for an hour.