Pertinent (adjective)

1. Relevant or appropriate to a particular situation or subject.
2. Having a bearing on or connection with a subject being considered.

Origin:

Middle english, from old french, from latin pertinent-, pertinens, from present participle of pertinēre to stretch, extend, belong.

Examples:

1. The question is not pertinent to the discussion.
2. The information is pertinent to the case.
3. The comment was not pertinent to the topic.
4. The evidence was pertinent to the prosecution's argument.
5. The question was pertinent to the decision-making process.